Inactive Computer stuck at loading screen (Windows Vista)

[BOBisTECHING]

My friend's computer (which I'm using) is stuck at loading screen. It's a Toshiba Satellite 64-bit with Windows Vista. I told him to format but he refuses because he doesn't want to lose stuff he has.

I am currently on the Safe Mode with Networking, so anything you need me to do I can do from here, except install programs.

I tried to do a virus scan with avast!, but the computer shut down. Tried again, and it shut down again. It shut down when it was about 70% done, and it had found 18 infected files. I did another scan, but this time I stopped it when it had 11 infected files and moved them to chest. And now when I do the scan it shuts down on 4%.

Can this be the cause of my problem? Or is it another thing? Solutions?

 

[Broni]

Welcome aboard

Please, complete all steps listed here: https://www.techspot.com/community/...lware-removal-preliminary-instructions.58138/
Make sure, you PASTE all logs. If some log exceeds 50,000 characters post limit, split it between couple of replies.
Attached logs won't be reviewed.
Safe Mode with Networking will be fine for now.
Complete as many steps, as you can.

Please, observe following rules:

• Read all of my instructions very carefully. Your mistakes during cleaning process may have very serious consequences, like unbootable computer.
• If you're stuck, or you're not sure about certain step, always ask before doing anything else.
• Please refrain from running tools or applying updates other than those I suggest.
• Never run more than one scan at a time.
• Keep updating me regarding your computer behavior, good, or bad.
• The cleaning process, once started, has to be completed. Even if your computer appears to act better, it may still be infected. Once the computer is totally clean, I'll certainly let you know.
• If you leave the topic without explanation in the middle of a cleaning process, you may not be eligible to receive any more help in malware removal forum.
• I close my topics if you have not replied in 5 days. If you need more time, simply let me know. If I closed your topic and you need it to be reopened, simply PM me.