We all know Windows machines, well computers in general, slow down after a while with all the crap we install. Microsoft have a great new solution coming in Windows 8 to solve this issue. Refresh your PC will return your computer to it’s out of box experience, however your files aren’t effected. This will reset Windows, without loosing data. Expect to require some free hard drive space for this to work.
If your the IT support for you extended family, this tool is likely to be a saviour for you. If troubleshooting is taking longer than half an hour, it’s likely faster to get your mum to use this option.
If you’d sell or give away your PC, there’s an option for that as well, which will actually remove your files. Make sure you’ve backed up before you use this one.