Win7开机提示operating system not found，大多时候是由于用户不当操作引起的，如果上述方法都无法解决，小编建议大家拿到维修店进行修理。

电脑开机黑屏提示operating system not found怎么办 2018-03-14 11:47 出处：其他 作者：佚名 ...

If you see Error 1962, No operating system found, Press any key to repeat boot sequence when you start your Lenovo computer, see this post.

I have solved the "No operating system found" by replacing the boot.ini file with a known good boot.ini. Not sure if that would work with your problem.

While booting a Hyper-V virtual machine, if you get No operating system was loaded error, this guide will help you fix the issue.