My PC won't let me install any antivirus

[juanc6]

Hello everyone. Well, a couple of days ago I've been trying to fix apparently a "missing sound problem" on my computer. I did many things before contacting experts on the Audio & Video forum, they told me some other things to do to try to solve the problem, in those things were getting a malware program to scan my computer. I tried downloading many different programs, such as antivirus and malware programs but my computer won't let me install any of those. I hope anybody can help me out on this problem because as of right now I can't afford it to take it to "Geek" experts and I wouldn't like to format computer because I have some important information, but I'll leave this last option as an extreme emergency. Thanks.

Regards.

 

[kimsland]

I wouldn't like to format computer because I have some important information,

You could just backup your data and then install clean
If you cannot get into Windows, please see this Topic: How to recover your folders/files when Windows won’t boot

Otherwise, if you want to continue, please follow this guide and post the logs:
UPDATED 8-step Viruses/Spyware/Malware Preliminary Removal Instructions
Note: for steps you cannot do, (like Antivirus) just ignore

 

[juanc6]

If I backup data from my computer, that means I will have to format my computer, correct?

 

[kimsland]

No.
I recommend "backup" whilst you can (if you can)
Only because during any malware removal Windows may end up requiring a repair
And then you may even say, well if you are repairing may as well go clean install
So to jump ahead, I mentioned both backup and clean install of which is sometimes quicker

 

[juanc6]

I tried backing up my data but I couldn't, don't know why. So what I'm planning on doing is put all kind of information I want to save on CD's/DVD's and then I'll just make a system recovery, which my computer would let me do. If I do a system recovery, do I require Windows XP CD? If not, is there anything in particular I do require? Thanks.

Regards.

 

[kimsland]

This sticky will help backup any data that you cannot do normally in Windows: How to recover your folders/files when Windows won’t boot

I think "System Recovery" relates to an image of Windows Setup files already on your computer, this "image" is provided by your OEM Manufacturer as a full restore of Windows; Drives and Applications
Therefore you will not need your Windows Setup CD

 

[juanc6]

I give up. I tried the "How to recover your folders/files when Windows won’t boot", but no solution. As mentioned before, I'm going to make some data CD's/DVD's and save all the things I need and once I'm done with that I will be doing the System Recovery once and for all. Thank you very much for your help.

Regards.