Hi Kabul

Thanks your answer about disabling NVIAva did the trick, scandisk and defrag works perfectly. one more question if I may, after restarting my pc it enables nviava again , do I need this and whats nviava about. I don't want to delete it but dont want to disable it everytime I want to run scandisk.

Thanks again you been a great help already.

cheers next beer is on me..

No problem vodka,

To disable (for XP), go to your Display Properties and click the Settings tab. Click the Advanced button and you should see a tab with the name of your video card. Click this, and with mine I get new popup with an option called Troubleshooting, here there is a checkbox to toggle displaying nvidia icon in taskbar. That work for my system anyway.

Or you can use the XP System Configuration Utility... type Msconfig.exe in Start --> Run. uncheck the nvidia util under the Startup tab