It's hard to say whether you have a software issue --- that uTorrent [or perhaps something else] damaged some critical system files --- or whether you have a hardware issue, since doing a "back to factory settings" should take care of just about any software issue.
My suggestion is that you should consider software/malware issues first. Unfortunately, Dell no longer allows malware analysis/repair at their forum.
Please follow the directions at http://spywarehammer.com/simplemachinesforum/index.php?topic=12262.0 to register and post the requested logs at spywarehammer.com ; there are expert helpers there who can "walk you through" procedures to analyze your system, and clean-up the infection (if one is still present). All help provided there is FREE. If you decide to go for help there, please wait for a response, and do NOT attempt to run any other scans/removers on your own --- do exactly what they instruct you to do, no more, no less.
Windows 7 Pro SP1 (64-bit), avast! v8 Free, MBAM Pro, Windows Firewall, OpenDNS Family Shield, SpywareBlaster, MVPS HOSTS file, EMET+MBAE, MCShield, WinPatrol PLUS, SAS (on-demand scanner), IE11 & Firefox (both using WOT [set to BLOCK]; KeyScrambler for IE), CryptoPrevent, Secunia PSI.
[I am experimenting with Sandboxie, and believe computer-users who sandbox are acting prudently.]
Please follow ky331's advice to post at SpywareHammer. SpywareHammer will ask you to remove all torrents and P2P file sharing software before they handle your case. I'm sure it is obvious to you now why they require that.
Best of luck in getting your issue resolved.
Microsoft MVP - Consumer SecuritySocial Media and Community ProfessionalSpywareHammer
I am not a Microsoft or a Dell employee. I am a volunteer.