Unity freezes my computer everytime I bring focus to an element inside the Unity form

Let's say I open Unity right now.

Then I want to adjust something in the scene view, so I click on it to bring focus to it; bang, Unity freezes for 10 seconds.

Then I might want to adjust an object, so I go to the Hierarchy screen to select an object; bang, Unity freezes for 10 seconds.

Whatever I do, when I click a new place on Unity, it freezes for 10 seconds.

I’ve tried upgrading my video driver to the latest, installing all available Windows Updates, defragged (C:\ drive), virus scanned my entire computer and removed cache files with CCleaner.

On top of that, I have uninstalled all the useless crap that was on my computer.

Unity is the only program that makes my computer freeze like this. I can play Unity games perfectly fine, I can play other games perfectly fine (Valve games, for instance - though I don't play big games on my computer).

Specs about my computer:

Model: HP Pavilion dv9000

Processor: AMD Turion™ 64 X2 Mobile Technology TL-58 1.90 GHz

RAM: 2.00 GB

System: Windows Vista Home Premium SP1 32-bit

I've checked google millions of times and found nothing. I've tried everything I could think of, but didn't work. I trust that you can help me? I really want to get on with Unity now :(

Try to press Ctrl+Alt+Del, then go to Task Manager, then go to Processes Tab, then choose QPService.exe that is for HP QuickPlay Program and click End Process. I had the same problem before with my HP Pavilion dv6000, and now it is solved.

I’m having the same issue. Working between tabs freeze system for 5-10 seconds.Happens at startup of Unity as well.

Has a solution for this been found yet?

System specs:

Model: Dell Precision T7400

Processor: Intel Xeon X5472 3.00GHz

RAM: 4gb

System: Windows XP (32bit) SP3

Video Card: Nvidia GeForce 9800 GTX+ 512mb

This question is ages old by now, but even with Unity 5 I too experienced this issue, however I figured out the only change I did prior to the freezes happening was changing my color profile in windows (windows 10). Reverting this change back to default seems to have solved it for me. I hope this can help anyone else that come accross this issue.