i want to share because i faced this problem last week.
The solution for above problem is
Step 1: Go to RUN option
Step 2:Type Regedit and press enter
Step 3:Press Ctrl+F
Step 4:Type mountpoints2 and press enter
Step 5:Right Click on mountpoints2 and click on delete option
Step 6: again search for mountpoints2 and again delete and delete until you wont find again mountpoints2
Follow these steps i am sure it will solve your problem
Thanks
Ankur Dhingra.
