I’ll give it a test again just to see what else has been updated since the consumer preview. However at this stage, I am pretty confident that this is the new Windows ME as olyteddy said.
Hopefully it’s a bit more stable this time. I had a total OS crash within the first day of installing the consumer preview, not to mention countless chkdsk issues across my HDDs nearly every time I rebooted back into Windows 7.
So far it’s seriously reminding me of Windows Vista’s early days. With the Windows 7 beta & previews, I don’t recall having a single issue.
As far as stability goes over the years, from my experience Windows 7 has been the best for stability so far, with Windows XP as next best. My current Window 7 installation is finally starting to give the occasional start-up issue (BSOD or hangs every ~4th boot, which I think is caused by some caching software I’m beta testing), but the installation is nearly 3 years old with the PC used for hours every day, including software, driver, etc. installations, updates and removals since its installation . Apart from SSD failures, I haven’t had any crash that required me to restore an OS backup.