When I try to run defrag it stops and can't run due to win/system32/1042 corruption. Any idea how to fix this? Thanks a lot, Alex

May be able to do it in Windows Safe-Mode. This option uses a minimal set of device drivers and services to start Windows. Hold down F8 during boot. Logon as Administrator. A Description of the Safe Mode Boot Options in Windows XP You also should do the following before Defrag Description of the Disk Cleanup Tool in Windows XP Another thing I notice that is taking up space is EVENT VIEWER logs. Go into EV then right click each catagory, then click "Clear all events". --------------------- Also check all the files in C:\WINDOWS\Prefetch The Prefetch folder is quite large. I have deleted all files there, even Layout.ini, at times without problems. It will rebuild itself over time. ---------------- Then do this to check for bad sectors on HDD: How to Perform Disk Error Checking in Windows XP Check mark both items under "Check Disk Options", on your way into starting Error-Checking Tool. ---------------- Next is to Defrag HDD: How to Defragment Your Disk Drive Volumes in Windows XP

It's a good idea to run scandisk before you defrag.