Hi,
First do these to clear corruption and repair/replace damaged/missing system files.
Run DiskCleanup - Start - All Programs - Accessories - System Tools - Disk Cleanup
Start - type in Search box - COMMAND find at top of list - RIGHT CLICK - RUN AS ADMIN
sfc /scannow
How to analyze the log file entries that the Microsoft Windows Resource Checker (SFC.exe) program
generates in Windows Vista cbs.log
http://support.microsoft.com/kb/928228
Then run checkdisk - schedule it to run at next start and then Apply OK your way out then restart.
How to Run Check Disk at Startup in Vista
http://www.vistax64.com/tutorials/67612-check-disk-chkdsk.html
Then these the 1st here should help fix the problem and the others are just in case.
How to Fix Windows Vista Help and Support
http://www.vistax64.com/tutorials/87497-help-support-vista.html
Pages in Windows Vista Help and Support are not displayed correctly
"Help and Support Error" - Service not started
http://windowsxp.mvps.org/helpsvc.htm
Fix Windows Vista Help and Support
http://www.windows-now.com/media/p/36567.aspx
I cannot open Help files that require the Windows Help (WinHlp32.exe) program
http://support.microsoft.com/default.aspx/kb/917607
Hope this helps.
Rob Brown - MS MVP - Windows Desktop Experience : Bicycle - Mark Twain said it right.