Don't reinstall! Choose a Windows registry repair utility instead
Registry errors can be trouble to fix. A lot of times people recommend reinstalling Windows. But, as pointed out elsewhere on the site, a repair install of Windows doesn't always work because it may not overwrite the registry. A much easier solution is a Windows registry repair utility which is a software program that performs a registry scan for errors and then automatically fixes the registry for you.
The trouble with the Windows registry is that Windows doesn't manage it very well. Uninstalled programs leave entries that don't belong, partial installs leave entries, there may be references to removed files, lists of favorite programs, and so on. Couple this with the way Windows writes files - one file can have pieces in multiple places on the disk drive (called fragmentation) and your registry can become bloated, irrelevant, corrupt and slow.
Fortunately for us even though Windows may be bad at managing the registry, it is well structured meaning that an automated Windows registry repair utility can easily repair and manage it for us. There are several programs on the market, many which unreliable and come without support. After doing research on all the registry cleaners on the market, our favorite is the RegCure registry repair utility because it will backup and manage the registry long term, it has great support (if you need it) and it has features that put the others to shame.
Instead of reinstalling Windows or taking your computer to the shop, use the same Windows registry repair utility they may use to fix your registry errors, RegCure registry repair. Download RegCure now and see if it is right for you. Run it regularly and you'll not only get rid of errors, you'll restore your system performance and keep it that way.