Virus? or just computer being wierd?

Just today, whenever I login to an account, my computer becomes super slow, taking forever to anything (1.6ghz processor 2gb memory), including opening task manager, start menu etc (I'm posting on a different computer). When task manager opens, it says that only 5% cpu is being used, which is normal, but it's still being slow. Also, Threatfire never loads, the system tray icon says that it's initiating and Bitdefender antivirus says that my license has expired, even though I bought a one year license about 3 months ago. The HDD indicator light on my computer is constantly lit even though nothing is happening. I can't do anything, even safe mode booting has the same symptoms. Any ideas on what the problem is?

 

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Another update! I'm using XP the problem now is, I can't even log on when normally booting, and when I try safe mode, it loads all the drivers then doesn't load. Same HDD light problem, light stays on, a repetitive sound is made and then it just gets stuck like that. I'm too the point where I'm just trying to remember what applications I had installed and reinstalling. Only problem is, I don't have an operating system disc, only an I386 folder, which I can't access for obvious reasons.:cry

 

Yup, a series of 3 clicks like click-------click-click, not really click but it's the best way I can describe it sounds like when the computer is starting up or writing to the disk. I've booted from a flash drive with kubuntu and I can still get to my hard disks and move files around etc. should I reinstall?

 

Are you sure it sounds like a combination of a click and a buzz and it doesn't sound any different from normal, just that it's in that in a pattern.

 

A HDD shouldn't make any abnormal sounds such as clicking or buzzing. If it does then it's failing and you should backup anything you have and replace it because it will die shortly.

A hint from experience, if a HDD is making a clicking or knocking sound, if you have it spinning, don't turn it off because it may not spin again which means data loss.

 

I don't mean to be pessimistic, but this is seriously the sound that this computer, the EEE PC 1000H makes when it's processing. Though I still agree with you on tthe fact that it might be an HDD problem, also, the HDD light problem doesn't start until like 15 seconds after startup.