OPERATING SYSTEM NOT FOUND on my sony vaio laptop

mrsllewis1

Honorable
Jan 27, 2013
1
0
10,510
My laptop would not come out of safe mode it then viewed an error message saying operation system not found.What do i do?
 
Re-install Windows from the recovery discs or from the recovery partition.

If recovery or re-install doesn't work, test the hard drive to start with, using DOS-based diagnostic software from the drive manufacturer's website. The links are here:
http://www.tacktech.com/display.cfm?ttid=287

Create a CD from the downloaded ISO file on a working computer using IMGBurn:
http://www.filehippo.com/download_imgburn/

Boot your faulty laptop from that CD and the diagnostic program will eventually open.
Test the laptop's hard drive with the Long/Extended test.