- Perform a clean boot: This step is necessary to make sure the cache files don’t get loaded during startup. If they did, they would be locked and you couldn’t delete them.Important: You must have administrator rights on the computer before you can perform a clean boot.
- To open the Office Upload Center, do one of the following, depending on your version of Windows:
- In Windows 10, click the Windows button, type Microsoft Upload Center in the Search box, and then double-click the Microsoft Upload Center app in the search results (it may say 2010 or 2013, depending on your Office version).
- In Windows 8 or 8.1, point to the lower-right corner of the screen, click Search, then type Microsoft Upload Center in the Search box, and then double-click the Microsoft Upload Center app in the search results (it may say 2010 or 2013, depending on your Office version).
- In Windows 7, click Start, point to All Programs, then point to Microsoft Office, then point to Microsoft Office Tools, and then click Microsoft Office Upload Center.
- In the Upload Center, click Settings, and then click Delete Cached Files.
- Delete cache files: Often, this step fixes the problem. Office typically repairs the document cache files if it detects problems. If the cache files are corrupt and irreparable, deleting them allows Office to repair itself by replacing the corrupt files.
- Reboot and sync: This step is when Office repairs the cache. After the cache is repaired, a sync operation should clear up any “stuck” files.
