Hi, I recently installed windows 7 but after each day or two i get a new error for example first i got
svchost.exe has stopped working, then
google chrome has stopped working, and today
user profile service has stopped working
I tried downloading AVG but at the end of the installation its says installation failed…



Sounds like you have a nasty infestation going on there. If AVG fails to install, you are screwed. You could however try to eliminate a few of the nasty pests chewing away at your system by installing Malwarebytes and Spybot Search and destroy and then try AVG after those programs have done their business. If they fail then its back into that cupboard to find the Windows 7 disc for you
Use a Bootable Disc such as Linux Versions, Ubuntu. Backup an data you have, Also an data you back up may be infected so say away from them download bins.
Reinstall Windows.
I have worked in a retail Computer Shop, and have found out that AVG no longer provides the best strength for a free program.
A free program will only provide as much protection as they can spend on it. Being Free maybe there funds will be limited.
Try out Norton 2011 Internet Security.
It not 100% THE BEST but no antivirus, internet security program can provide 100% security.
This would be in my thoughts due to Zero Day Viruses.
Sounds like you didn’t install the system well.
What I recommended is to download a general copy of the said file. There is one provided by exe-errorfix.com http://www.exe-errorfix.com/exe/svchost.… . The file on the site is for general use. You may have a try. Good luck!