My main machine wouldn't fire up this morning, reaching the 'loading personal settings' screen then re-booting.
I tried a 'last known good' boot, with no success, then tried safe mode which also failed - a BSOD I didn't get a chance to read, and off it went again.
So, I pulled out the trusty Acronis backup, restored and all is well again. The only thing I did yesterday was to install some Windows security updates, but the machine had re-booted successfully after that and powered down normally, so I'm left puzzling. The fact that it could boot from the Acronis Unix disc suggests it was a Windows issue, but what?
Thoughts, anyone?