My PC is running Windows XP Pro, SP2, with a the latest updates installed
On Wednesday, 9th January 2008 I downloaded two security patches and the malicious software removal tool via Microsoft's Windows Update website.
It was necessary to reboot after the installation, but when my PC tried to start-up again it ended in the perpetual reboot cycle. I managed to use F8 whilst rebooting, and stopped the rebooting, and received the blue screen error 0xC000021A. I wasn't sure how to go further, so I repaired the Windows XP Pro, and reinstalled sp2.
Now I can't access the Shutdown dialog box, either from the Start Menu of by CTRL + ALT + DEL. With the latter, the usual dialog box opens, but when I click on the "Shutdown" button, it remains "pushed", but nothing happens.
I now am left in the situation where I have to turn the PC off by holding in the power button for 4 secs.
Could you advise me, please?
It has just occurred to me that I could go through all this again next time I download the Microsoft updates.