Cause

When files set to a future date compared to the current date exist in the operating system (OS), a “System Clock has been set back.” error may occur. This issue can happen if the OS’s system date has been changed to the past or due to files received from another user. FLEXnet software outputs the error System time has been reset. for security reasons when there are files set to a future date compared to the current OS system date.

Solution

Windows

1. Open File Explorer.
   
2. Click [View] > [Options].
   
3. Click [Show hidden files, folders, and drives].
   
4. Disable [Hide protected operating system files].
5. Click [Apply] and close.
6. In the search bar at the top of the Explorer window, enter modified:14/06/2024 (current system date) .. 12/31/2029 (5 years from the system date).
7. Open Windows PowerShell with administrator privileges.
8. Change the creation date of the files identified in step 6 to a date prior to the current date using the command (Get-Item [file path]).CreationTime=([new creation time]).