4、重新开机，问题解决，也能正常进入系统。 关于win7系统开机提示Non-system disk or disk error，我们可以通过U盘启动工具来进入PE系统，并选择计算机管理对磁盘管理工具进行设置，在将主分区设置为将分区标记为活动分区后，轻轻解决问题。

If when you boot Windows 11/10, you see Non-System disk or disk error, Replace and strike any key when ready on a black screen, this post will help you.

If you see Invalid system disk, Replace the disk and then press any key when you try to boot into Windows, here are a few troubleshooting suggestions you want to try.

I got a Non-System Disk or Disk Error when I booted up my 2 year old Compaq notebook. After restarting about 50 times over the span of half an hour, Windows eventually started successfully.