Can't open "My Computer" or Windows Explorer, and Control Pannel

Hi Guys,
i just joined this forum hoping to get some help for my problem here...
well basically i can't open any of the above mentioned things, i searched for viruses and removed ad ware and had none. now i have no clue what to do. preferable not format my hdd again. thanks.

PS: i filled in the specs of my pc on my profile.
 
Go HERE and then post back with the three requested logs as attachments
  • AVG antispyware
  • ComboFix
  • Hijackthis (step 15)
 
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