Hi guys. I have a problem. My parents have a pc. These are the stats: Windows XP - 32 bit Intel(R) Pentium(R) 4 CPU 3.00GHz 3.00 GHz 1,00 GB RAM 48,8 GB HD [22,1 GB free] (if you need more, drop me a line) Their Skype hasn't been working for ages, and I tried to install Windows XP's service pack 3 but it didn't work (I get an error message which reads: "service pack 3 could not backup registry value...") I read on here that getting rid of my temp files, cleaning up the registry and disabling the anitvirus program should do the trick. However, after doing that the error message is still there. Someone else recommended installing it in safe mode, that didn't work either (same error message). Anyway. As the pc is slow, and there are several programs which don't work properly, I thought before trying anything else I do a clean installation. I secured their files, found the old recovery disk, told BIOS to boot from the disk, and ... nothing happened. The pc boots as if the disk wasn't there. By this point I was a bit fed up and inserted a 8.1 windows (64) recovery disk simply to make matters sure, and voila, it got the installation process started . Of course after several minutes I get, as expected, an error message saying the pc is not 64 bits compatible. And yet, when I put its own recovery disk back in it won't recognise it. I just don't understand what's going on. Any suggestions?