Update: During the week end I tried to fix the problem using yours and other forums suggestions. Unfortunately none worked =(
Btw there was a fix that reduced the stuttering, now it happend every 10...

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So, i've tried the latency moon program and this happend, i was watching a youtube video while the program was running, do I need to keep the pc in idle without doing nothing? Or I found the problem?...

I edited this post because I double posted it, sorry

Thank you for your reply.
Yes, with a clean install and a local account the problem fixed itself.
I'm gonna try also your fix of a clean boot, hope it sets me in the right direction. I'm gonna try...

First of all thank you for your reply, and thank you for the Word Document. I've alredy tried some of the possible fixes that was mentioned but nothing worked, I'm gonna try later the other ones....

Hi to everyone, first of all, sorry for my bad english, it's not my native language.

Windows 10... where to begin? Since now it disappointed me a lot, hope you can change my mind solving my...