I too had this problem. I read somewhere in forms and got rid of that.
the solution is
01. Right click on My computer
02. Click properties
03. Go to advanced tab.
04. Under Performance click Settings
05. Unchecked all options here and save.
06. Right click on Desktop
07. Under Desktop go to Customize Desktop.
08. click Web tab, and make sure to unchecked Lock desktop items.
09. Right click on My computer
10. Click properties
11. Go to advanced tab.
12. Under Performance click Settings
13. checked all options here and save.
Done hope its work for you all.