2100: detection error on HDD

@fik87924 that is the error that comes up when your computer's BIOS is trying to access the drive and it can't. Could be related to a bad connection between the drive and the motherboard, or it could be a bad drive. I would remove the drive and then reseat it. Give it a try. If that does not work, you may have to consider a new drive.

You can download the hardware maintenance guide for the computer you listed, from here I will help you to work on your Lenovo.

这个答案有帮助吗？