Windows 8 Release Preview expiration date
I still have Windows 8 CP installed. Will Microsoft lock down my operating system now that the final version is released?
The Consumer Preview, as well as the newer Release Preview, will stop working on January 15, 2013.
After this date, the previews will automatically restart every hour.
Yes, both the Consumer Preview (Build 8250, CP), and the Release Candidate (Build 8400, RC) will expire on January 15, 2013 at 7:59 ET.
To find this yourself, you can run