Težava pri zagonu windowsov

Mogoče kdo ve, kaj je narobe:
(se opravičujem za napake v tekstu, ker je bil prepisan)

A problem has been detected and windows has been shut down to prevent damage to your computer.

If this is the first time you've seen this stop error screen, restart your computer. If this screen appers again, follow this steps:
The BIOS in this system si not fully ACPI compliant. Please contact your system vendor or visit http://www.hardware-update.com for an update BIOS. If you are unable to otain an updated BIOS of the latest BIOS supplied by your vendor is not ACPI compliant, you can turn off ACPI mode during text mode setup. To do this, simply press F7 key when you are prompted to install storage drivers. The system will not notify you that the F7 key was pressed - it will sitentty disable ACPI and allow you to continue installation.

Tehnical information:

*** STOP: 0x000000A5(0x00000011,0x00000006,0x00000000,0x00000000)

Ima mogoce kdo idejo kaj za naredit ce dobis BSOD z zgornjim tekstom - pa mi sistem laufa ze dve leti brez sprememb (torej so WinXP ze dolgo instalirani pa tudi hardwersko nisem nic spreminjal)?

L.p.

Nihce?