know how can u remove ur pc password ...............
steps
1. start ur pc
2. before complete the processing press F8 5 to 8 times
3. after this, you see "Windows Advanced Option Menu"
4. select "Safe Mode Option" & wait 3 to 5 minutes
5. select "Administrater A/c"
6. go to user a/c & select a/c which u remove password
7. after that restart ur pc and use ur a/c without password