Want to do a factory restore/reset on dell desktop.  I've tried the restart then when www.dell.com is at top of screen pushing down on cntrl f11 at same time.  I've tried this many many times and just goes to restart.  Any suggestions?  Reason I want to do this is do too it won't connect to internet and keeps popping up stating that needs antispyware installed so I went and bought AVG antiviris and antispyware.  It removed a trojan but stil can't update program do to can't connect online.  Appreciate anyones help.  Thank you and have a great holiday.