Fix SQL Server R2 hint evaluation period has been over
1. The registry changes the CommonFiles value in HKEY_LOCAL_MACHINE\SOFTWARE\Microsoft\Microsoft SQL server\100\configurationstate to 3
2 . Enter the installation center in the SQL2008 R2 Configuration tool
3, re-enter the maintenance interface, select Version Upgrade
You may be prompted to restart the computer when the rule check appears
Workaround: (1) enter "regedit" in cmd to enter the registration form
(2) The following location is found in the left-hand directory of the registry: "HKEY_LOCAL_MACHINE\SYSTEM\CurrentControlSet\Control\Session Manager"
(3) Right Select Delete "PendingFileRenameOperations" item.
(4) Click Re-run on the installation screen to see that restarting the computer is successful
4, Enter the product key, input the key
Enterprise Edition 64-bit KEY:GYF3T-H2V88-GRPPH-HWRJP-QRTYB
5, always point to the next step, until the upgrade is complete.
If the above operation is not connected to the server, modify the system time (put the time ahead), you can log in
SQL Server R2 Tip evaluation period is over