Köszi, sokat segített . Ezt kaptam vissza: Your system appears to be having trouble handling real-time audio and other tasks. You are likely to experience buffer underruns appearing as drop outs, clicks or pops. One or more DPC routines that belong to a driver running in your system appear to be executing for too long. Also one or more ISR routines that belong to a driver running in your system appear to be executing for too long. At least one detected problem appears to be network related. In case you are using a WLAN adapter, try disabling it to get better results. One problem may be related to power management, disable CPU throttling settings in Control Panel and BIOS setup. Check for BIOS updates.
Wifi nincs, bios update nem létezik (10 éves gép), biosban a speedstep-et tiltottam le. Újraindítás után alapban zöld volt az értékelés, elindítottam a firefoxot, youtube, ekkor már dobálta a hibákat:
DPC routines are part of the interrupt servicing dispatch mechanism and disable the possibility for a process to utilize the CPU while it is interrupted until the DPC has finished execution.

Highest DPC routine execution time (µs): 5046,578892
Driver with highest DPC routine execution time: dxgkrnl.sys - DirectX Graphics Kernel, Microsoft Corporation

Highest reported total DPC routine time (%): 0,156499
Driver with highest DPC total execution time: ntoskrnl.exe - NT Kernel & System, Microsoft Corporation