32-bit and 64-bit Windows: Frequently asked questions
Windows 11 doesn't have a 32-bit version and is 64-bit only. Installs will always be 64-bit. To install a 64-bit version of Windows, you need a CPU that's capable of running a 64-bit version of Windows.
Use the Office offline installer - Microsoft Support
Open the Office folder in the virtual drive, and then select either the Setup32.exe to install the 32-bit version of Microsoft 365, or Setup64.exe to install the 64-bit version to begin the offline installation.
Applies To:
Office 2024, Office 2021, Office 2019, Office 2016, Microsoft 365 for home, Microsoft365.com, 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 365 Germany - Enterprise, Office 365 Germany - Enterprise admin
Choose between the 64-bit, 32-bit, and ARM version of OneDrive
If you're not sure which OneDrive version is better for you, you can review the reasons to choose the 64-bit version, the 32-bit version, ARM64 version for Windows, or the Apple silicon version for Mac.
Applies To:
Microsoft365.com, Microsoft Office, OneDrive (home or personal), OneDrive for Mac, OneDrive for Windows
Download Internet Explorer 11 (Offline installer) - Microsoft Support
To download the offline installer for Internet Explorer 11, choose your language and system below.
Download and install Microsoft 365 Access Runtime
The Microsoft 365 Access Runtime files are available as a free download in either the 32-bit (x86) or 64-bit (x64) versions in all supported languages. Decide which bit version you need. For more information, see Choose between the 64-bit or 32-bit version of Office.
Applies To:
Access for Microsoft 365, Access 2024, Office 2024, Access 2021, Office 2021, Access 2019, Office 2019
Determine whether your computer is running a 32-bit version or 64-bit ...
Use the 32-bit installer if you’re using a 32-bit version of Windows and the 64-bit installer with a 64-bit version of Windows. To determine which version of Windows you’re using, follow the steps in Method 1 or 2.
Applies To:
Skype for Business Online operated by 21Vianet
Download and install or reinstall Office 2021, Office 2019, or Office ...
To install Office in a different language, or to install the 64-bit version, use the dropdown to find more options. Choose the language and bit version you want, and then select Install. You're now ready to install Office .
Applies To:
Office 2021, Office 2021 for Mac, Office 2019, Office 2019 for Mac, Office 2016, Office 2016 for Mac
Install or reinstall classic Outlook on a Windows PC
To install a standalone version of classic Outlook for Windows, select your language from the dropdown, and then select Download. Follow the prompts to complete the installation. Which language do you need? Tip: You can also try installing classic Outlook from the Microsoft Store.
Applies To:
New Outlook for Windows
Windows Installer 4.5 is available - Microsoft Support
For 64-bit: Windows6.0-KB942288-v2-x64.msu For IA64 Platform: Windows6.0-KB942288-v2-ia64.msu Installation of the Windows Installer 4.5 package requires a reboot to successfully update the required binaries.
Microsoft Defender update for Windows operating system installation ...
You must be running a 64-bit Windows 10 or a later OS environment that includes PowerShell 5.1 or a later version. The Microsoft.Powershell.Security and DISM modules must be installed. You must start PowerShell on the device by using administrator privileges.