Ideas - I hope I've covered your queries
For Disk Clean
Disk Cleanup - Compressed Old Files Freezes (Line 48)
http://www.kellys-korner-xp.com/xp_tweaks.htm
To use the Regedit: Save the REG File to your hard disk. Double click it and
answer yes to the import prompt. REG files can be viewed in Notepad by right
clicking on the file and selecting Edit.
or
Restore Disk Cleanup - cleanmgr (Line 84)
http://www.kellys-korner-xp.com/xp_tweaks.htm
for check disk (chkdisk) - check the log to see if it has completed
You will find the chkdsk log entry in the Application log of Event Viewer.
To access the Event Viewer
.. Go to Control Panel > Administrative Tools> Event Viewer > Application.
.. Look for the Event from the source "WinLogon".
For serious error - see if anything on these links help
http://support.microsoft.com/default.aspx?scid=kb;EN-US;Q308041
Resources for Troubleshooting Startup Problems in Windows XP
http://support.microsoft.com/default.aspx?scid=kb;EN-US;q317277
You Receive a "System Has Recovered from a Serious Error" Message After Every
Restart
http://support.microsoft.com/default.aspx?scid=kb;en-us;316424
Error Message: The System Has Recovered from a Serious Problem
John Green said:
I'm running XP Home Edition. For the last few months I've had system tools
problems. When I start disk cleanup, it stalls right away on "checking old
files". When I run Check Disk it runs for awhile, then says that it could not
complete. When I run it to "automatically fix file system errors", which
requires a restart to run, the computer comes back up saying that it has
recovered from a serious error. Presumably this includes a failure to complete
the error-checking function.
Tonight I reinstalled XP, feeling certain that this would solve the problem.
It did not. I've searched and searched for an answer, with no luck. Any ideas?
Thanks,