First, check in your control panel for " Mouse" and check that everything is set right and run a quick diagnostic. If you're still having trouble, the best thing to do is just buy a new wireless mouse for it. They're pretty cheap, easy to set up and you don't have a wire around all … Read more

I do believe you can downgrade but you best to check with the make of your computer. Call the tech support they would be much better to help you. 

DOS is an older system and may or may not upgrade to Windows 8. Some say you can but most say you can't. You can run it on XP or Windows 7 without much problem but the question is? Why would you want to? I would just forget 8 as it's junk anyway and look … Read more