well, interesting story.
see...I kind of yanked out a hard drive from one computer and switchced the two. my computer didnt like that too much. every so often it gives me a bluescreen when i boot up. i just have to restart and its fine. so i tried reinstalling all its drivers and now....For some reason...when i boot up it says "Dell Dimension 4500". when i own a 4300s.
SO
i thought if i got the bios for this computer then maybe those bluescreens would stop.
Switching out hard disks from different computers should not have affected the machine's BIOS at all. Something's not making sense here. Is it the Dell spash screen upon boot up that's suddenly changed model numbers? Or is it what Windows reports the machine as being?
Windows HATES having lots of new hardware thrown at it at once. In this case, that's pretty much what happened. From my understanding, you took the OS drive from one computer and placed into a different model and made it the primary boot device. So the old version of windows had all these different drivers loaded into it for the system board of the old machine. I'm sure it auto-detected the new system board drivers and the such, but I'm pretty sure the OS is completely and utterly confused at this point. Best thing to do, if it were me, would be to boot into safe mode and remove pretty much every driver you could, then reboot the dang thing in normal mode and have it auto-detect all the hardware again. This way, hopefully, all the old system drivers are gone and the confusion will stop.
Try to back up your data before you do this. If you lose any data, it's not my fault.