Here's how you can address your issue:
1. Download and install
ShellExView on your computer. Disable all the non MSFT content one by one and check if the problem is resolved. If disabling non MSFT services didn't helps, proceed to next step.
2. Perform sfc /scannow on problem or all the partitions. This will check the partitions for its integrity and replaces damaged or corrupt system files. For more details, you can have a look here:
http://www.sevenforums.com/tutorials/1538-sfc-scannow-command-system-file-checker.html
Again, if both the above options failed to address the issue, proceed to next step.
3 Create a new
Windows system profile and delete the old one. Make sure that you've successfully copied all your data from old Windows profile. .
Hope these solutions will efficiently address the issue.