log on log off loop

this is actually my father's computer. and he has several pictures and other stuff that he doesn't want to lose. Is there any way to try a repair or replace the file that is showing missing or corrupt and try to then run the Avira?

I'm not sure why it's not letting it use the repair install. The installation is number 1.

the repair install fom the Avira Disk or from the windows XP disk that I have?

I have gotten it to come up with the XP disc to a blue screen saying
Windows XP Home Edition Setup

Welsome to setup.
This portion of the setup program prepares Micrposoft windows XP to run on your computer.

-TO set up windows XP now press enter.
-To Repair a windows Xp installation using recovery console, press r.
-To quit setup without installing Windows XP, press F3.

If I press enter to set up Windows, it asks me about partitions, and if i press the r it brings me to the black screen we were discussing before. Which do you suggest at this point.

Thanks again and sorry for all of the trouble.

Setting up Windows will overwrite the current partition and basically format the machine.
Pressing R asks for which installations you want to logon to?

Thank you for all of your help. We ended up bringing the computer in as we were in over our heads. Thanks again