This weekend I have been fighting a horrible scenario where TWO of my computers (XP with AVG) went into an endless Restart-loop. Both of them could not load Fail-safe mode. Both could not boot from CD for a clean Windows install (even though BIOS was set to "CD boot" as the 1st, 2nd and 3rd option). The final solution was to connect the hard-disks of both machines to my third machine (Windows 7, no antivirus) through a USB external casing, and formatting them. Once formatted, I could put them back into their machines, and only then I could get the machines to boot from CD for a clean XP install! Last night I heard a friend having a very similar problem: (XP with AVG) went into a endless Restart-loop, had to reinstall XP.
So: Has anyone heard of such problem/virus? How can I protect myself from this in the future?
Cause of problem found. I can reproduce it now. No Virus.
The cause: Installation of MSSQL Server 2005 Express
What I did to reproduce:
Installed three hard disks
Drive 1: XP SP2 Pro Drive 2: XP SP2 Pro - for emergency. Drive 3: Atempt to install MSSQL Server 2005 Express.
a. Boot from drive 1. b. Try to install MSSQL Server 2005 Express. All requisites OK. Begin installation. c. Blue Screen of death.
Any further attempt to reboot XP on drive 1: Blue Screen of death.
Savior: Boot from drive 2. Format drive 1. Reinstall XP.
Retrospectively, that is indeed what I was trying to do before original disaster (install MSSQL ) only I was doing other things also so could not isolate problem. Now it's reproduceable.
Why does this happen? I don't know and don't care. I guess I'll try MYSQL...
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