My wife's older Dell Inspiron 530 is running very slow. McAfee virus SW finds no issues with viruses. At this point, I'd like to reformat the HDD and reinstall the OS. It is running MS Vista Home Premium but I'm not sure where the original discs are that came with the PC. I have 2 other Dell PCs. One is another 530 which I reinstalled a few years ago with Windows 7. I have my original discs with drivers and Windows Vista reinstall disc. I also have an XPS 8700 which I reinstalled with Windows 7 Pro over the Windows 8 it shipped with. I suppose I might also be able to use the Win 8 discs. My wife's PC only has 2 GB of RAM so I'm thinking Win 8 isn't a good option. I'd appreciate any knowledgable recommendations please?
I also have not been able to locate the procedures to perform the manual reinstall on my Dell PC. Where is Dell hiding them these days?
Any and all help would be much appreciated on getting my wife's PC back up and running somewhat as well as it used to.