Windows Freezing Problem Solution

The biggest culprits here are usually malware (malicious software, whose favorite installation method is through browser exploits) or high temperatures in your case. With malware, there are no real standards for quality, so badly written ones can cause all kinds of performance issues. The stuff is also designed to be hard to find and hard to remove, so your antimalware software (Norton, McAfee, or Malwarebytes) might not remove it. In which case, you may need to reinstall Windows.

But before you nuke it from orbit, how dusty is your case? The stuff insulates whatever it's collected on and will clog fans over time. But a can of compressed air held upright and triggered in short bursts should take care of most of it.

Case vibration over time can also loosen cables and cause random loss of signal, so make sure those are all squared away (and not chewed up by gremlins).

Lastly, if you're overclocking your CPU or GPU, you may just need to tone that down a bit.