Encountered in the work of sql server 2008 evaluation period expires, to find a solution on the Internet, the recording here.
Sqlserver 2008 evaluation version expires, 2008 Sqlserver trial period has expired, solutions.
This time to the customer at the time of system upgrade, encountered problems Sqlserver 2008 evaluation version expires, you had better his life, because a evaluation version expires, Sqlserver 2008 to open a direct impact on the work of smoothly, so I quickly find a solution to the law, fortunately, hard work pays off, I found the answer still is, the sun came out, for your reference.
The first step: enter the installation SQL2008 center configuration tool
Step two: re-entering the maintenance interface, select the version upgrade
third step: enter the product key, enter the key
fourth step: Always point the next step until the upgrade is completed.
Server 2008 Developer SQL: PTTFM-X467G-P7RH2-3Q6CG-4DMYB
SQL Server 2008 Enterprise: JD8Y6-HQG69-P9H84-XDTPG-34MBB
as the above operation is not connected into the server, modify the system time (the time in advance), you can log
If the problem still is not resolved or display evaluation period has expired (which is said not a bug sql2008sp1 installation)
The first step: go to the registry to HKEY_LOCAL_MACHINE / SOFTWARE / Microsoft / Microsoft SQL Server / 100 / ConfigurationState change in the value of CommonFiles 3
Step Two: sql2008 center installation, maintenance, version upgrades do it all over (because the database has already been upgraded, so this upgrade only shared components)