CHSDSK > Fragmentation

Go to Control Panel and click Performance And Maintenance then click Scheduled Tasks.
See if there is any scheduled task and delete it.

Try:

1) Start > All Programs > Accessories > Command Prompt

2) Type "cd.." until you are at the C: prompt

3) Type chkntfs C: and hit enter

Let us know if it reports "C: is not dirty" or not. If it is not, reboot the machine and let CHKDSK run if it loads at startup.

And while you are at it, let us know if you run Zone Alarm.

Thanks for your help, Cyanure, but there's nothing in it.

I just noticed that you're using Diskeeper.
Look inside this program for an option to disable defragmentation at startup

Done that already, thanks again ... but there's still that notice.

Try this one:
Go to Start/Run anf type msconfig
click the Startup tab
Look for an entry named dkservice and uncheck it
Restart your PC and see if this can solve the problem

Thanks!

I shut down diskeeper, since there's no dkservice (or similar) mentioned.
(I use[d] diskeeper automatically, but not at startup.)