Nothing to lose then you might as well try a Clean Install ... Read the Tutorial Below and follow it Step by step ..
http://www.sevenforums.com/tutorials/219487-clean-reinstall-factory-oem-windows-7-a.html
http://www.sevenforums.com/tutorials/219487-clean-reinstall-factory-oem-windows-7-a.html
My Computer
At a glance
windows 7 home 64bitINTEL-CORE I716GB
- Computer Manufacturer/Model Number
- W530-3630QM1
- OS
- windows 7 home 64bit
- CPU
- INTEL-CORE I7
- Memory
- 16GB
- Hard Drives
- 750GB
- Browser
- Chrome