ThinkCentre M710e had a special "UEFI Windows Boot Manager" case with Crucial MX500 SSD

ThinkCentre M710e 10UQ, parts of them normal; part of them not. 

Both were to install Crucial MX500 SSD.

Unknown why suddenly did not work after SSD setup; after powered off on a few computers.

The computers could detect the SSD with "UEFI Windows Boot Manager" at the first time of powered on.

After done Security Patches & Drivers updating, shut it down.

Special case, then, coming.

The "UEFI Windows Boot Manager" was out when colleagues powered on their computers.

They could not run the Windows 10.

Tried different ways to solve. Not work.

Finally, a quite unique way solved it.

Removed the SSD, installed another hard disk, powered on to detect the hard disk & power off, and mounted back the SSD.

Then, the computer could detect "UEFI Windows Boot Manager" back. 

It was not "UEFI Windows Boot Manager" out away again.

It could run the Windows 10 in normal.