To resolve the thumbs.db issue, you must first disable thumbnails view caching and then manually delete any existing thumbs.db files in your IGAM Applications subfolders. (NOTE: If thumbnails view caching is not disabled, Windows may prevent you from deleting existing thumbs.db files or just recreate the file after you delete it.) We suggest having your internal IT staff follow the steps below; please be sure to double-check the version of your Windows operating system as there are different sets of instructions between Windows XP and Windows 7 / Windows Vista:  

For Windows XP:
1. In Windows Explorer, go to Tools > Folder Options > View tab.
2. Check the box for Do not cache thumbnails.
3. Also check the button to Show hidden files and folders. (NOTE: This will let you see existing hidden thumbs.db files.)
4. Click OK.
5. Go to the the IGAM application subfolders listed in the purge error message and delete the thumbs.db file.
6. Re-run the Purge.  

For Windows Vista / 7:
1. Login to the computer as an administrator.
2. Click the Start button and type gpedit.msc to open the Local Group Policy Editor. (NOTE: This option is not available on Home editions.)
3. Navigate to User Configuration > Administrative Templates > Windows Components > Windows Explorer.
4. Double click on Turn off the caching of thumbnails in hidden thumbs.db files to open the edit window.
5. Click the Enable radio button and then OK.
6. Close the the Local Group Policy Editor.
7. In Windows Explorer, click Organize > Folder and Search Options.
8. Go to the View tab and click Show hidden files, folders and drives. (NOTE: This will let you see existing hidden thumbs.db files.)
9. Click OK.
10. Logoff and login again to apply the revised group policy.
11. Go to the the IGAM application subfolders listed in the purge error message and delete the thumbs.db file.
12. Re-run the Purge.