Hi Tomanov,
Thanks for reaching out to Microsoft Q&A!
I totally feel your frustration — a brand‑new PC with constant stuttering is definitely disappointing. Based on what you’ve described and already tried, this doesn’t look like a typical Windows performance issue. I know you probably wasted so much time on this already so I’ll just get straight to the point:
From experience, this often points to a motherboard BIOS bug or a chipset driver/firmware incompatibility. Please check your vendor’s site for any BIOS beta or AGESA updates. If none are available, report the issue to the motherboard support team and consider a replacement if you’re still within the warranty/return period.
Unfortunately, early BIOS revisions on new boards can sometimes cause firmware‑level latency. In these cases, Windows simply exposes the problem. So there’s no tweaks or configurations to help.
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