With help from Technical Support, I have now fixed the problem.
For the benefit of anyone with similar problems (and in case I can not longer index my own email history again!) here is what I did:
>>>
Open X1. Click the Main Menu Button. Click the Gear Icon for the Files Data source and remove this folder from the file indexing: C:\Users\[your user name here]\Documents\Outlook Files\
To fully remove and reinstall:
- PREREQUISITE:
Launch the X1 interface go to Menu > License and Deactivate your current license activation.
- UNINSTALL
1. Access Control Panel > Programs & Features.
2. Uninstall X1 Search. When prompted, opt NOT to save your X1 settings.
3. Check the following locations for remaining X1 Search files, and delete them:
- C:\Users\<username>\AppData\Local\X1 Search - this is the default location of the X1 Search data directory.
- C:\Program Files\X1 Search - this is the install location of the X1 program files.
- C:\Program Files (x86)\X1 Search - this is the install location of the X1 program files on a 64-bit operating system, running a 32-bit version of Outlook.
NOTE: You may find an X1 Search directory under C:\ProgramData\. You do NOT need to delete this directory.
4. Click Start > Run > Regedit or click your Windows Logo Key + R to launch regedit.exe and delete the X1 Search registry keys found in any of the following locations:
- HKEY_CURRENT_USER\Software\X1 Search
- HKEY_CURRENT_USER\Software\Wow6432Node\X1 Search
- HKEY_LOCAL_MACHINE\Software\X1 Search
- HKEY_LOCAL_MACHINE\Software\Wow6432Node\X1 Search
- FRESH INSTALL
Perform a fresh install of X1 Search 8 by launching the X1Searchsetup.exe found here:
http://download.x1.com/downloads/search/X1SearchSetup.exe>>>
Cheers
J