Lady at work brings me her PC because it is in an endless reboot loop. It's an eMachines W3105. I go about all the normal things to fix and got it to boot. Sent it home and the next day she says it is doing the same thing. So this time I decide to back up, format, reinstall thinking possibly there is a HAL issue or some corrupted install files. Even though I tried a repair install first that ended up doing the same thing.
So here's what happened. During setup I get a pop up saying that "this hardware cannot be installed. CDROM. please consult your manufacturer" Or something like that. Then a couple seconds later another one about the card reader. Then later on, "Setup cannot install this hardware. SYSTEM"
And setup continues along. Then when it reboots it goes to the black screen to choose normal, safe mode, etc. I can reboot then and do a repair install which will boot. I can install drivers, it reads CD's and DVD's, gets on the internet etc. But Windows updates do not work. I get a Generic host processes error.
One other oddity, during all of this I have to use 2 keyboards. A USB board to hit any key to boot from CD, then a PS/2 board to type in CD key and other stuff.
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If your equation requires either a complex combination of variables to get the desired result OR you can't seem to get the result regardless of the variables....it ain't your variables, it's your constant.