Windows 7 Best Buy operating system

What brand is it? Like HP/Dell/Acer/ect. Once you have the brand go get a copy of the OEM OS. From either the Branded website or a torrent (I dont consider this "Bad" as He does own a Legit Copy) the OEM versions will install without a Key. Then you will have a base install with no fluff you can do with what you want.

Thent

just make sure you get the same version of windows 7 (odds are it will be home premium) or the key will not work

The legality of this is very sketchy, though it should work. To be sure that you are in the clear just go purchase an OEM copy and do a fresh install. Be sure to match the bit rating (32bit or 64bit) of what is currently installed.

If you uninstall all the crap software that comes with the PC and change your user accounts a little then you should be able to get around this problem without having to reformat the machine.

Lastly, request an install/recovery disc from the manufacturer (typically $20-40), there may be install options so that you can keep it from installing some of the junk software that comes with it, and you will be able to set up your users during the install so that they do not 'take over' your PC.

personally I think getting a torrent verison is fine.
u own a copy of windows already...
what is wrong is the fact that system has some crapware on it....

its not right the corporations can fraud, steal and cheat the consumer legally

Have you considered removing the Best Buy user from your system (Control Panel/User Accounts/Manage User Accounts)?

Also, you should look at Control Panel/Programs and Features to remove all of the "crapware" installed on your system. Run CCleaner after removing the offending programs to clean up your registry.

http://www.piriform.com/ccleaner

boot windows, go to c:\windows\system32\sysprep\sysprep.exe, select audit mode and reboot, click ok, when system reboots itself don't touch sysprep but instead open start menu, type in 'user profiles' and press enter
in that window delete your account which causes the problems, confirm by pressing ok, now in sysprep set OOBE and reboot, check generalize, confirm (might take a while)

incase it gives you error, you just have to kill wmpnetwk.exe process in task manager (it's known to cause issues with sysprep)

on next reboot your windows will be basically clean as if you just installed em (all your apps, drivers, games etc. will be there too so don't worry; it just gets rid of all the windows user account data - make SURE you backup all your stuff from desktop/documents/downloads etc folders before doing anything with sysprep, basically everything in c:\users\problematicaccount folder)
you just have to input typical stuff (location, user name etc.) afterwards