Install Office 2010 - Microsoft Support
https://support.microsoft.com/en-us/office/install-office-2010-1b8f3c9b-bdd2-4a4f-8c88-aa756546529d
OverviewInstall 32-bit (default) Office 2010Install 64-bit Office 2010Install or remove individual Office programs or componentsWhat you need to know before installing 64-bit Office:•You must be running 64-bit Windows. To check, see Which Windows operating system am I running?.•Uninstall any 32-bit versions of Office. See Uninstall or remove Office 2010.•Make sure any 3rd-party Office add-ins that you rely on are stated as being Office 2010 and 64-bit compatible. Possible backward incompatibility is why, if in doubt, stay with the 32-bit version.See more on support.microsoft.comExplore further What you need to know before installing 64-bit Office:•You must be running 64-bit Windows. To check, see Which Windows operating system am I running?. •Uninstall any 32-bit versions of Office. See Uninstall or remove Office 2010.•Make sure any 3rd-party Office add-ins that you rely on are stated as being Office 2010 and 64-bit compatible. Possible backward incompatibility is why, if in doubt, stay with the 32-bit version.
What you need to know before installing 64-bit Office:•You must be running 64-bit Windows. To check, see Which Windows operating system am I running?.
•Uninstall any 32-bit versions of Office. See Uninstall or remove Office 2010.•Make sure any 3rd-party Office add-ins that you rely on are stated as being Office 2010 and 64-bit compatible. Possible backward incompatibility is why, if in doubt, stay with the 32-bit version.
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