Defrag slows my computer

I’ve noticed this before but the other night I used Iolo System Mechanic to defrag my hard drive and it actually caused my computer to slow down…mostly at boot ups. Anyone know what is causing this happen? I’m on XP SP2 Media Center Edition.

I would go back and check System Mechanic’s [B]settings[/B].
It sounds like it has been scheduled to “do something” at boot time. Perhaps a boot time defrag ?

Also, check your Startup Folder for any uninvited guests that may be trying to load at Startup.

I like WinPatrol for managing my Startup Folder.
Its primary function is Registry Watchdog if you choose to let it run in real time.

Thanks for the reply