DO THIS AT YOUR OWN RISK!
From a quick search it appears this has been happening for a while......some posts date back as far as 2009! (Win 8)
Various meanings have been put forward from 'Offline' files to files being 'Corrupt'.
The best solution I found, and which seems most logical to me, seems to be the following.....'best' meaning it worked for most people.
Reinitialize corrupt or incorrect netcache...
To resolve this problem, reinitialize the cache of offline files.
To do this, follow these steps:
- Click Start, type regedit in the Start Search box, and then press ENTER.
If you are prompted for an administrator password or for a confirmation, type the password, or click Continue.
- Locate the following registry subkey, and then right-click it: HKEY_LOCAL_MACHINE\System\CurrentControlSet\Services\CSC
- Point to New, and then click Key.
- Type Parameters in the box.
- Right-click Parameters, point to New, and then click DWORD (32-bit)Value.
- Type FormatDatabase, and then press ENTER.
- Right-click FormatDatabase, and then click Modify.
- In the Value data box, type 1, and then click OK.
- Exit Registry Editor, and then restart the computer.
I've not tried it personally as I don't have the problem.
Just go careful in the registry.....back it up FIRST!
(I take no responsibility for the result of any registry editing done by you.)
Regards.
MrToM.