Boot Problem (win 7)

[sharq]

edit: re installed OS everything is fine now

 

[rgd1101]

if you have good backup of your data, you can do a factory restore
http://forums.lenovo.com/t5/IdeaPad-Y-and-U-series-Laptops/How-to-do-System-Recovery-on-Lenovo-z580/ta-p/895007