Windows XP Computer Acting Strange

I've had this Dell Windows XP PC for about fifteen years, and after not touching it since like 2013, I decided to boot it up again for old-times-sake just to see what files were on the system. A few weeks later, I realized that I wanted to pull some files off of the old computer to stick on the laptop I currently use, but when I attempted to boot the computer up, I kept getting stuck at BIOS with error messages which I can't remember as of now, but it seemed to be along the lines of a hardware failure message. A month later, I again tried booting the Windows XP, and was successfully able to do so, but when I logged into my profile, I got the message, "The system has recovered from a serious error. A log of this error has been created." and when I further investigated the details, I found this "error signature":
BCCode : 10000050 BCP1 : 80FEF1BA BCP2 : 00000000 BCP3 : 80FEF1BA
BCP4 : 00000000 OSVer : 5_1_2600 SP : 3_0 Product : 256_1
I only want to know if any of you on this forum know what this error code means, so I can attempt to fix whatever problem is occurring.
Computer Specs which I can remember from when I bought the machine:
Dell Windows XP Professional Edition
2GB Ram
256GB Video Card
64GB Spinning Hard Drive
Intel Pentium 4

Thanks - Jonathan
the first thing you should do is replace the cmos battery, then run chkdsk with the /r parameter either from the recovery console or from the cmd prompt if the cmos replacement lets you boot to windows.