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Submission: On October 07 via manual from ID — Scanned from DE
Submission: On October 07 via manual from ID — Scanned from DE
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Related topics
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Office install
How to install Office
* Microsoft 365, Office 2021
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Redeem or activate
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Activate Office
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Language, 32/64-bit, and other options
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* End of support for Office 2013
* End of support for Office 2010
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* Windows 7 end of support and Office
* Windows 8 end of support and Office
Troubleshoot and uninstall
* Troubleshoot installing Office
* Find Office applications
* Office is taking long to install
* Uninstall Office from a PC
* Uninstall Office for Mac
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Related topics
Office install
How to install Office
* Microsoft 365, Office 2021
* Office 2019, 2016, 2013
* Office 2010
Redeem or activate
* Redeem or activate
Office product keys
* Enter your product key
* Product key FAQ
* Change your Office product key
* Product key for Office 2010
Activate Office
* Activate Office
* Deactivate an installation of Office
* Unlicensed Product error
* Activate Office for Mac
* Activate Office 2010
Language, 32/64-bit, and other options
* Language pack for Office
* 64-bit or 32-bit version of Office
* Office offline installer
Install other apps
* Install Project
* Install Visio
* Install Skype for Business
Set up mobile devices
* Set up Office and email on mobile
Office updates
* Update Office on PC
* Update Office for Mac
* Upgrade macOS
Upgrade to the latest version
* How do I upgrade Office?
* End of support for Office 2013
* End of support for Office 2010
* End of support for Office 2016 for Mac
* Windows 7 end of support and Office
* Windows 8 end of support and Office
Troubleshoot and uninstall
* Troubleshoot installing Office
* Find Office applications
* Office is taking long to install
* Uninstall Office from a PC
* Uninstall Office for Mac
CHOOSE BETWEEN THE 64-BIT OR 32-BIT VERSION OF OFFICE
Office 2021 Office 2019 Office 2016 Office 2013 Microsoft 365 for home Office
for business Office 365 Small Business Microsoft 365 admin Office 365 operated
by 21Vianet Office 365 operated by 21Vianet - Small Business Admin Office 365
operated by 21Vianet - Admin Office 2010 Office 365 Germany - Enterprise Office
365 Germany - Enterprise admin Office.com More...Less
If you're not sure which Office product you have, see What version of Office am
I using? Otherwise, pick your version of Office from below.
Important You can't run add-ins or MDE files compiled in a 32-bit version
of Office on a 64-bit version of Office and vice versa.
Newer versionsOffice 2016Office 2013Office 2010
I KNOW WHICH VERSION I WANT. HOW DO I INSTALL IT?
The 64-bit version of Office is automatically installed unless you explicitly
select the 32-bit version before beginning the installation process.
To install either the 32 or 64-bit version of Microsoft 365, Office 2021, or
Office 2019, follow the steps in Install Office on a PC.
Important: If you install the 64-bit version, but want the 32-bit version
instead, you must first uninstall the 64-bit version before installing the
32-bit version. The same is true if you installed the 32-bit version, but want
to install the 64-bit version. See “Office (64-bit or 32-bit) couldn’t be
installed” error.
If you're still not sure which version, 32-bit or 64-bit is a better choice for
you, see the section below.
REASONS TO CHOOSE THE 64-BIT VERSION
Computers running 64-bit versions of Windows generally have more resources such
as processing power and memory, than their 32-bit predecessors. Also, 64-bit
applications can access more memory than 32-bit applications (up to 18.4 million
Petabytes). Therefore, if your scenarios include large files and/or working with
large data sets and your computer is running 64-bit version of Windows, 64-bit
is the right choice when:
* You’re working with large data sets, like enterprise-scale Excel workbooks
with complex calculations, many pivot tables, data connections to external
databases, Power Pivot, 3D Map, Power View, or Get & Transform. The 64-bit
version of Office may perform better in these cases. See Excel specifications
and limits, Data Model specification and limits, and Memory usage in the
32-bit edition of Excel.
* You're using add-ins with Outlook, Excel, or other Office apps. While 32-bit
applications can work with add-ins, they can use up a system's available
virtual address space. With 64-bit apps, you have up to 128 TB of virtual
address space which the app and any add-ins running the same process can
share. With 32-bit apps, you might get as little as 2 GB of virtual address
space which in many cases isn't enough and can cause the app to stop
responding or crash.
* You’re working with extremely large pictures, videos, or animations in
PowerPoint. The 64-bit version of Office may be better suited to handle these
complex slide decks.
* You’re working with files over 2 GB in Project, especially if the project has
many sub-projects.
* You’re developing in-house Office solutions like add-ins or document-level
customization. Using the 64-bit version of Office lets you deliver a 64-bit
version of those solutions as well as a 32-bit version. In-house Office
solution developers should have access to the 64-bit Office 2016 for testing
and updating these solutions.
* You’re working with the Large Number data type in Access, and while this data
type is supported by 32-bit Access, you may see unexpected results when
executing code or expressions that use native 32-bit VBA libraries. 64-bit
VBA provides the LongLong data type which fully supports large numbers. For
more information, see Using the Large Number data type.
REASONS TO CHOOSE THE 32-BIT VERSION
The following computer systems can only install 32-bit Office. Check your
Windows version.
* 64-bit operating system with ARM-based processor
* 32-bit operating system with an x86 (32-bit) processor
* Less than 4 GB RAM
Tip: If you have 64-bit operating system with an x64-based processor, you can
choose to install 32-bit or 64-bit Office.
IT professionals, and developers in particular, should also review the following
situations where the 32-bit version of Office is still the best choice for you
or your organization.
* You have 32-bit COM Add-ins with no 64-bit alternative. You can continue to
run 32-bit COM add-ins in 32-bit Office on 64-bit Windows. You can also try
contacting the COM Add-in vendor and requesting a 64-bit version.
* You use 32-bit controls with no 64-bit alternative. You can continue to run
32-bit controls in 32-bit Office like Microsoft (Mscomctl.ocx, comctl.ocx),
or any existing 3rd-party 32-bit controls.
* Your VBA code uses Declare statements Most VBA code doesn’t need to change
when using in 64-bit or 32-bit, unless you use Declare statements to
call WindowsAPI using 32-bit data types like long, for pointers and handles.
In most cases, adding PtrSafe to the Declare and replacing long with LongPtr
will make the Declare statement compatible with both 32- and 64-bit. However
this might not be possible in rare cases where there is no 64-bit API to
Declare. For more information about what VBA changes are needed to make it
run on 64-bit Office, see 64-Bit Visual Basic for Applications Overview.
* You have 32-bit MAPI applications for Outlook. With a growing number of
64-bit Outlookcustomers, rebuilding 32-bit MAPI applications, add-ins, or
macros for 64-bit Outlook is the recommended option, but if needed you can
continue to run them with 32-bit Outlook only, as well. To learn about
preparing Outlook applications for both 32-bit and 64-bit platforms, see
Building MAPI Applications on 32-Bit and 64-Bit Platforms and the Outlook
MAPI Reference.
* You’re activating a 32-bit OLE server or object. You can continue to run your
32-bit OLE Server application with a 32-bit version of Office installed.
* You're using SharePoint Server 2010 and you need the Edit in Datasheet view.
You can continue to use the Edit in Datasheet view functionality in
SharePoint Server 2010 with 32-bit Office.
* You need 32-bit Microsoft Access .mde, .ade, and .accde database files. While
you can recompile 32-bit .mde, .ade, and .accde files to make them 64-bit
compatible, you can continue to run 32-bit .mde, .ade, and .accde files in
32-bit Access.
* You require Legacy Equation Editor or WLL (Word Add-in libraries) files in
Word. You can continue to use Legacy Word Equation Editor and run WLL files
in 32-bit Word.
* You have an old embedded media file in your PowerPoint presentation with no
available 64-bit codec.
READY TO INSTALL?
To install either the 32 or 64-bit version of Microsoft 365, Office 2021, or
Office 2019, follow the steps in Install Office on a PC.
I KNOW WHICH VERSION I WANT. HOW DO I INSTALL IT?
The 32-bit version of Office is automatically installed unless you explicitly
select the 64-bit version before beginning the installation process.
To install either the 32 or 64-bit version of Office 2016, follow the steps in
Install Microsoft 365 or 2016 on a PC.
Important: If you already installed the 32-bit version, but want to install the
64-bit version instead (or vice versa), you must uninstall the version you don't
want before installing the version you do want. See “Office (64-bit or 32-bit)
couldn’t be installed” error.
If you're still not sure which version, 32-bit or 64-bit is a better choice for
you, see the section below.
REASONS TO CHOOSE THE 64-BIT VERSION
Computers running 64-bit versions of Windows generally have more resources such
as processing power and memory, than their 32-bit predecessors. Also, 64-bit
applications can access more memory than 32-bit applications (up to 18.4 million
Petabytes). Therefore, if your scenarios include large files and/or working with
large data sets and your computer is running 64-bit version of Windows, 64-bit
is the right choice when:
* You’re working with large data sets, like enterprise-scale Excel workbooks
with complex calculations, many pivot tables, data connections to external
databases, Power Pivot, 3D Map, Power View, or Get & Transform. The 64-bit
version of Office may perform better in these cases. See, Excel
specifications and limits, Data Model specification and limits, and Memory
usage in the 32-bit edition of Excel.
* You’re working with extremely large pictures, videos, or animations in
PowerPoint. The 64-bit version of Office may be better suited to handle these
complex slide decks.
* You’re working with files over 2 GB in Project, especially if the project has
many sub-projects.
* You’re developing in-house Office solutions like add-ins or document-level
customization. Using the 64-bit version of Office lets you deliver a 64-bit
version of those solutions as well as a 32-bit version. In-house Office
solution developers should have access to the 64-bit Office 2016 for testing
and updating these solutions.
* You’re working with the Large Number data type in Access, and while this data
type is supported by 32-bit Access, you may see unexpected results when
executing code or expressions that use native 32-bit VBA libraries. 64-bit
VBA provides the LongLong data type which fully supports large numbers. For
more information, see Using the Large Number data type.
REASONS TO CHOOSE THE 32-BIT VERSION
32-bit operating system with an x86 (32-bit) processor can only install 32-bit
Office. Check your Windows version.
Tip: If you have 64-bit operating system with an x64-based processor, you can
choose to install 32-bit or 64-bit Office.
IT Professionals and developers in particular, should also review the following
situations where the 32-bit version of Office is still the best choice for you
or your organization.
* You have 32-bit COM Add-ins with no 64-bit alternative. You can continue to
run 32-bit COM add-ins in 32-bit Office on 64-bit Windows. You can also try
contacting the COM Add-in vendor and requesting a 64-bit version.
* You use 32-bit controls with no 64-bit alternative. You can continue to run
32-bit controls in 32-bit Office like Microsoft Windows Common Controls
(Mscomctl.ocx, comctl.ocx), or any existing 3rd-party 32-bit controls.
* Your VBA code uses Declare statements Most VBA code doesn’t need to change
when using in 64-bit or 32-bit, unless you use Declare statements to call
WindowsAPI using 32-bit data types like long, for pointers and handles. In
most cases, adding PtrSafe to the Declare and replacing long with LongPtr
will make the Declare statement compatible with both 32- and 64-bit. However
this might not be possible in rare cases where there is no 64-bit API to
Declare. For more information about what VBA changes are needed to make it
run on 64-bit Office, see 64-Bit Visual Basic for Applications Overview.
* You have 32-bit MAPI applications for Outlook. With a growing number of
64-bit Outlookcustomers, rebuilding 32-bit MAPI applications, add-ins, or
macros for 64-bit Outlook is the recommended option, but if needed you can
continue to run them with 32-bit Outlook only, as well. To learn about
preparing Outlook applications for both 32-bit and 64-bit platforms, see
Building MAPI Applications on 32-Bit and 64-Bit Platforms and the Outlook
MAPI Reference.
* You’re activating a 32-bit OLE server or object. You can continue to run your
32-bit OLE Server application with a 32-bit version of Office installed.
* You're using SharePoint Server 2010 and you need the Edit in Datasheet view.
You can continue to use the Edit in Datasheet view functionality in
SharePoint Server 2010 with 32-bit Office.
* You need 32-bit Microsoft Access.mde, .ade, and .accde database files. While
you can recompile 32-bit .mde, .ade, and .accde files to make them 64-bit
compatible, you can continue to run 32-bit .mde, .ade, and .accde files in
32-bit Access.
* You require Legacy Equation Editor or WLL (WordAdd-in libraries) files in
Word. You can continue to use Legacy WordEquation Editor and run WLL files in
32-bit Word.
* You have an old embedded media file in your PowerPoint presentation with no
available 64-bit codec.
READY TO INSTALL?
To install either the 32 or 64-bit version of Office 2016, follow the steps in
Install Microsoft 365 or 2016 on a PC.
There are two versions of Office 2013 available for installation, 32-bit and
64-bit. We recommend the 32-bit version of Office for most users, because it’s
more compatible with most other applications, especially 3rd-party add-ins.
However, consider the 64-bit version, especially if you're working with large
blocks of information or graphics.
I KNOW I WANT THE 64-BIT VERSION. HOW DO I INSTALL IT?
To install Office 2013, see Install Office 2013.
Note: If you already installed the 32-bit version, but want to install the
64-bit version instead (or vice versa) you'll need to uninstall the version you
don't want before going ahead with installing the version you do want. See
“Office (64-bit or 32-bit) couldn’t be installed” error when trying to install.
If you're still not sure which is a better choice for you, see the sections
below.
REASONS TO CHOOSE THE 64-BIT VERSION
The 64-bit version of Office has some limitations; however it is a good choice
when:
* You work with extremely large data sets, like enterprise-scale
Excel workbooks with complex calculations, many pivot tables, connections to
external databases, and using Power Pivot, Power Map, or Power View. The
64-bit version of Office may perform better for you.
* You work with extremely large pictures, videos, or animations in PowerPoint.
The 64-bit version may be better suited to handle these complex slide decks.
* You work with extremely large Word documents. The 64-bit version might be
better suited to handle Word documents with large tables, graphics, or other
objects.
* You’re working with files over 2 gigabytes (GB) in Project 2013, especially
if the project has several sub-projects.
* You want to keep the 64-bit version that you’re already using. The 32-bit and
64-bit versions of Office programs aren’t compatible, so you can’t install
both on the same computer.
* You’re developing in-house solutions, like add-ins or document-level
customization.
* Your organization requires that Hardware Data Execution Prevention (DEP) be
enforced for Office applications. DEP is a set of hardware and software
technologies that some organizations use to enhance security.
If none of these situations apply to you, the 32-bit version is most likely a
better choice.
Note: The 32-bit version of Office works well with both the 32-bit and 64-bit
versions of Windows. If you’re installing the 64-bit version of Office, you need
the 64-bit version of Windows. If you’re not installing on Windows, you don’t
need to be concerned about 32-bit or 64-bit options. To determine how to tell
what version of Office you're using, go to What version of Office am I using?
If you decide to switch from 32-bit Office to 64-bit Office, you must uninstall
the 32-bit version first, and then install the 64-bit version.
REASONS TO CHOOSE THE 32-BIT VERSION
The 64-bit version of Office may perform better in some cases, but you need to
know about limitations.
* 32-bit operating system with an x86 (32-bit) processor can only install
32-bit Office. Check your Windows version.
* If you have 64-bit operating system with an x64-based processor, you can
choose to install 32-bit or 64-bit Office.
IT Professionals and developers in particular, should look at the following
situations, and review the linked overviews. If these limitations would affect
you, the 32-bit version would be a better choice.
* Solutions that use ActiveX controls library. ComCtl controls won’t work.
There are several ways for developers to work around this and provide a
64-bit solution.
* 32-bit third party ActiveX controls and add-ins won’t work. The vendor would
need to create 64-bit versions of these controls.
* Visual Basic for Applications (VBA) that contain Declare statements won’t
work in the 64-bit version of Office without being updated. For more
information about what VBA changes are needed to make it run on 64-bit
Office, see 64-bit Visual Basic for Applications Overview.
* Compiled Access databases, such as .MDE, .ADE, and .ACCDE files won’t work
unless they’re specifically written for the 64-bit version of Office.
* You have 32-bit MAPI applications for Outlook. With a growing number of
64-bit Outlook customers, rebuilding 32-bit MAPI applications, add-ins, or
macros for 64-bit Outlook is a recommended option. To learn more about
preparing Outlook applications for both 32- and 64-bit platforms, see
Building MAPI applications on 32-Bit and 64-Bit Platforms and the Outlook
MAPI Reference.
* In SharePoint 2010 or earlier, the datasheet view won’t be available because
this view uses an ActiveX control.
* Microsoft Office Excel Viewer, Access database engine of Access 2013, and
Compatibility Pack for the 2007 Office system will block a 64-bit Office 2013
installation.
* The legacy Equation Editor in Word isn’t supported on 64-bit Office 2016, but
the equation builder feature in Word 2013 is supported on all platforms.
Also, Word Add-in Libraries (WLL) are not supported in 64-bit Office 2013.
If you have specific add-ins that you use in the 32-bit version of Office, they
might not work in 64-bit Office, and vice versa. If you’re concerned, check your
current version of Office before installing the new one. Consider testing the
add-in with 64-bit Office, or finding out if a 64-bit version of the add-in is
available from the developer.
Important: If you’re an administrator who is deploying Office, we have more
64-bit technical info available on TechNet at 64-bit editions of Office 2013.
READY TO INSTALL?
Follow the instructions in:
* Download and install or reinstall Office 2013
Important: Office 2010 is no longer supported. Upgrade to Microsoft 365 to work
anywhere from any device and continue to receive support.
Upgrade now
Office 2010 was the first release where Office offered both 32-bit and 64-bit
versions. The 32-bit version is Office is installed automatically. However, the
version that’s right for you depends on how you plan to use Office. If you have
specific add-ins that you use in the 32-bit version of Office, they might not
work in 64-bit Office and vice versa. If you’re concerned, check your current
version of Office before installing the new one. Consider testing the add-in
with 64-bit Office, or checking if a 64-bit version of the add-in is available
from the vendor/developer.
I KNOW I WANT THE 64-BIT VERSION. HOW DO I INSTALL IT?
To install Office 2010, see Office 2010.
If you're still not sure which is a better choice for you, see the sections
below.
REASONS TO CHOOSE THE 64-BIT VERSION
The benefits of using the 64-bit version of Office 2010 are listed below, and
there are a few limitations such as not working well with some older version
add-ins. It’s mostly because of the limitations that the 32-bit version is
installed automatically (by default), even on the 64-bit Windowsoperating
system.
If your work scenarios include very large files and/or working with large sets
of data, and your computer is running the 64-bit version of Windows, 64-bit is
the right choice specifically when:
* You’re working with very large data sets, such as enterprise-scale
OfficeExcel workbooks with complex calculations, lots of pivot tables,
connecting to external databases, and using features such as Power Pivot, 3D
Map, Power View, or Get & Transform. Because 64-bit Office doesn’t impose
specific limits on file size, as 32-bit Office does (2 gigabyte (GB) limit),
it may work better with large data sets.
* You’re working with extremely large pictures, videos, or animation
in Office PowerPoint. The 64-bit version of Office may be better suited to
handle these complex slide decks.
* You’re working with files that take up over 2 gigabytes of space in
OfficeProject, especially if the project has many sub-projects.
* You’re developing in-house Office solutions like add-ins or document-level
customization.
* Your organization requires that Hardware Data Execution Prevention (DEP) be
enforced for Office applications. DEP is a set of hardware and software
technologies that some organizations use to enhance security. For 64-bit
installations DEP will always be enforced, while on 32-bit installations DEP
needs to be configured through settings.
* With more Outlook customers using 64-bit, rebuilding 32-bit Messaging
Application Programming Interface (MAPI) applications, add-ins, or macros for
64-bit Outlook is the recommended option. But if necessary you can also
continue to run them with 32-bit Outlook only.
REASONS TO CHOOSE THE 32-BIT VERSION
32-bit operating system with an x86 (32-bit) processor can only install 32-bit
Office. Check your Windows version.
If you have 64-bit operating system with an x64-based processor, you can choose
to install 32-bit or 64-bit Office.
Tip: In addition to providing support for the 32-bit versions of Windows, the
32-bit version of Office is supported on computers that run the 64-bit versions
of Windows. Office 2010 lets users continue to use existing Microsoft ActiveX
Controls, Component Object model (COM) add-ins, and Visual Basic for
Applications (VBA). These are primarily 32-bit because no 64-bit versions are
available for many add-ins.
* If your organization needs to continue to use extensions to Office, such as
ActiveX controls, third-party add-ins, in-house solutions built on previous
versions of Office, or 32-bit versions of software that interface directly
with Office, we recommend you go with the automatically installed 32-bit
(x86) Office 2010 on computers that are running both 32-bit and 64-bit
supported Windows operating systems.
* You use 32-bit controls with no 64-bit alternative. You can continue to run
32-bit controls in 32-bit Office like Microsoft Windows Common Controls
(Mscomctl.ocx, comctl.ocx), or any existing third-party 32-bit controls.
* Your VBA code uses Declare statements. Visual Basic for Applications (VBA)
that contain Declare statements won’t work in the 64-bit version of Office
without being updated.
* In SharePoint Server 2010 or earlier, the datasheet view won't be available.
However, you can continue to use the Edit in Datasheet view functionality in
SharePoint Server 2010 with a 32-bit Office client.
* Compiled Access databases, like .MDE and .ACCDE files, won’t work unless they
are specifically written for the 64-bit version of Office.
* You need Legacy Equation Editor or WLL (Word Add-in Libraries) file in Word.
You can continue to use Legacy Word Equation Editor (WLL files were
deprecated in 32-bit and not supported in Office2010).
* There is no codec (software used to compress or decompress a video or audio
file) available in 64-bit for three QuickTime media formats. Therefore, if
you have an old embedded media file in a PowerPoint presentation, you’ll need
to use 32-bit Office.
READY TO INSTALL?
Follow the instructions in:
* Install Office 2010
SEE ALSO
Which Windows operating system am I running?
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