Can an upgrade fix problems or do you need a reinstall?

I have a laptop with Windows 7 on it that has been hanging on me the last couple of days for no apparent reason. This usually seems to happen while on the internet and then while on a stock-trading website, but not always. I have to restart the computer or wait half an hour or an hour. I'm restarting over and over. I did not install anything immediately prior to this problem starting. I took the computer to Office Max and they scanned it and couldn't find any virus. I tried to do a System Restore but it came back unsuccessful. What should I try next? I'm thinking a factory reset, a clean reinstall of Windows, or an upgrade to Windows 10. How likely would an upgrade to Windows 10 be to fix such a problem? I know that it's difficult to tell from the information I'm giving but is it even possible that an operating system upgrade can fix such things or do you need to erase the old system? This would save me reinstalling a bunch of programs. Today I bought Windows 10 at Walmart for $119, should have waited and asked you guys first, but I could return it.

As far as I know there is nothing in Windows 10 that would be of any particular use to me. That's is, nothing as far as I know (I haven't used Windows 10.)

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Re: fix

That depends on the reason for the hanging.
- If it's defective hardware, or a setting or driver or installed program that is not affected by the upgrade to Windows 10, an upgrade won't help and you need a clean install (of Windows 7 or 10).
- If it's defective hardware, even a clean install won't help.

Just try.

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Bought a new computer

Thanks for the tip. I tried my brother's computer at my house and it worked fine. I upgraded my computer with the free Windows 10 and the problems lessened considerably but did not go away completely. I found an off-lease computer on ebay that I liked for not too much money and bought it. I should have tried cleaning the old one first. I like the new computer. When I get a chance I'll try cleaning the old one.

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