www.webroot.com/safe - lot of people don't be aware of what the
semaphore timeout period that has ended on Windows 10 issue is. However, it's possible to face this issue at times. It typically occurs when your system is unable to transfer data or files between one storage device (source) into another (destination) because it was unable to connect or identify the source or the target. There could be a myriad of reasons behind this problem. It is obvious that if the reason for the problem is related to a drive or disk then you're at possibility of losing your data permanently.
The Wall