Question Laptop - random lags without reason

Jan 21, 2022
Hello I have a problem with windows, about half a year ago overnight my computer started randomly stuttering in games or a strange sound coming from the speakers,Unfortunately I can't open my laptop and in my model you can't remove the battery,

What I tried,

- Clean windows installation (windows 11, windows 10 from pendrive, windows 10 from mediacreator tool, windows 10 from laptop settings)

- Driver reinstallation

- Anti-virus scan

- tests on a clean windows without any programs in safe mode

- bios update

- bios settings format (to initial laptop)


nvidia 1050 ti graphics card

intel uhd graphics 630 integrated graphics card

processors (8) Intel Core i5-8300H CPU @ 2.30GHz

- latencymon screen with clean windows (all programs services disabled + autostart programs also disabled)




Your system seems to be having difficulty handling real-time audio and other tasks. You may experience drop outs, clicks

or pops due to buffer underruns. One or more DPC routines that belong to a driver running in your system appear to be

executing for too long. One problem may be related to power management, disable CPU throttling settings in Control Panel

and BIOS setup. Check for BIOS updates.

LatencyMon has been analyzing your system for 0:19:37 (h🇲🇲ss) on all processors.




Computer name: DESKTOP-MKJEB8O

OS version: Windows 10, 10.0, version 2009, build: 19044 (x64)

Hardware: OMEN by HP Laptop 15-dc0xxx, HP

BIOS: F.16

CPU: GenuineIntel Intel(R) Core(TM) i5-8300H CPU @ 2.30GHz

Logical processors: 8

Processor groups: 1

Processor group size: 8

RAM: 8000 MB total




Reported CPU speed (WMI): 2304 MHz

Reported CPU speed (registry): 2304 MHz

Note: reported execution times may be calculated based on a fixed reported CPU speed. Disable variable speed settings like

Intel Speed Step and AMD Cool N Quiet in the BIOS setup for more accurate results.




The interrupt to process latency reflects the measured interval that a usermode process needed to respond to a hardware

request from the moment the interrupt service routine started execution. This includes the scheduling and execution of a

DPC routine, the signaling of an event and the waking up of a usermode thread from an idle wait state in response to that


Highest measured interrupt to process latency (µs): 1786,80

Average measured interrupt to process latency (µs): 6,342066

Highest measured interrupt to DPC latency (µs): 1025,80

Average measured interrupt to DPC latency (µs): 2,237598




Interrupt service routines are routines installed by the OS and device drivers that execute in response to a hardware

interrupt signal.

Highest ISR routine execution time (µs): 752,956597

Driver with highest ISR routine execution time: Wdf01000.sys - Aparat wykonawczy struktury sterowników trybu jądra,

Microsoft Corporation

Highest reported total ISR routine time (%): 0,028467

Driver with highest ISR total time: Wdf01000.sys - Aparat wykonawczy struktury sterowników trybu jądra,

Microsoft Corporation

Total time spent in ISRs (%) 0,076136

ISR count (execution time <250 µs): 491220

ISR count (execution time 250-500 µs): 0

ISR count (execution time 500-1000 µs): 20

ISR count (execution time 1000-2000 µs): 0

ISR count (execution time 2000-4000 µs): 0

ISR count (execution time >=4000 µs): 0




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): 1590,643229

Driver with highest DPC routine execution time: ACPI.sys - Sterownik ACPI dla systemu NT, Microsoft Corporation

Highest reported total DPC routine time (%): 0,069284

Driver with highest DPC total execution time: ACPI.sys - Sterownik ACPI dla systemu NT, Microsoft Corporation

Total time spent in DPCs (%) 0,188924

DPC count (execution time <250 µs): 1265093

DPC count (execution time 250-500 µs): 0

DPC count (execution time 500-10000 µs): 16725

DPC count (execution time 1000-2000 µs): 181

DPC count (execution time 2000-4000 µs): 0

DPC count (execution time >=4000 µs): 0




Hard pagefaults are events that get triggered by making use of virtual memory that is not resident in RAM but backed by a

memory mapped file on disk. The process of resolving the hard pagefault requires reading in the memory from disk while the

process is interrupted and blocked from execution.

NOTE: some processes were hit by hard pagefaults. If these were programs producing audio, they are likely to interrupt the

audio stream resulting in dropouts, clicks and pops. Check the Processes tab to see which programs were hit.

Process with highest pagefault count: mmc.exe

Total number of hard pagefaults 24075

Hard pagefault count of hardest hit process: 3750

Number of processes hit: 72




CPU 0 Interrupt cycle time (s): 54,949279

CPU 0 ISR highest execution time (µs): 738,850694

CPU 0 ISR total execution time (s): 6,347555

CPU 0 ISR count: 416369

CPU 0 DPC highest execution time (µs): 1590,643229

CPU 0 DPC total execution time (s): 16,172158

CPU 0 DPC count: 1117428


CPU 1 Interrupt cycle time (s): 13,466021

CPU 1 ISR highest execution time (µs): 752,956597

CPU 1 ISR total execution time (s): 0,623692

CPU 1 ISR count: 53816

CPU 1 DPC highest execution time (µs): 1185,947917

CPU 1 DPC total execution time (s): 0,743443

CPU 1 DPC count: 54839


CPU 2 Interrupt cycle time (s): 10,035054

CPU 2 ISR highest execution time (µs): 128,691840

CPU 2 ISR total execution time (s): 0,185529

CPU 2 ISR count: 15767

CPU 2 DPC highest execution time (µs): 775,397569

CPU 2 DPC total execution time (s): 0,311787

CPU 2 DPC count: 40545


CPU 3 Interrupt cycle time (s): 13,946484

CPU 3 ISR highest execution time (µs): 463,263889

CPU 3 ISR total execution time (s): 0,013758

CPU 3 ISR count: 2219

CPU 3 DPC highest execution time (µs): 685,963542

CPU 3 DPC total execution time (s): 0,062949

CPU 3 DPC count: 8036


CPU 4 Interrupt cycle time (s): 11,239337

CPU 4 ISR highest execution time (µs): 25,888021

CPU 4 ISR total execution time (s): 0,000911

CPU 4 ISR count: 721

CPU 4 DPC highest execution time (µs): 837,624132

CPU 4 DPC total execution time (s): 0,243903

CPU 4 DPC count: 25290


CPU 5 Interrupt cycle time (s): 13,979305

CPU 5 ISR highest execution time (µs): 69,465278

CPU 5 ISR total execution time (s): 0,001458

CPU 5 ISR count: 1571

CPU 5 DPC highest execution time (µs): 654,708333

CPU 5 DPC total execution time (s): 0,073223

CPU 5 DPC count: 9267


CPU 6 Interrupt cycle time (s): 8,452921

CPU 6 ISR highest execution time (µs): 5,736979

CPU 6 ISR total execution time (s): 0,000251

CPU 6 ISR count: 262

CPU 6 DPC highest execution time (µs): 651,177083

CPU 6 DPC total execution time (s): 0,122988

CPU 6 DPC count: 18023


CPU 7 Interrupt cycle time (s): 11,026149

CPU 7 ISR highest execution time (µs): 21,159722

CPU 7 ISR total execution time (s): 0,000517

CPU 7 ISR count: 515

CPU 7 DPC highest execution time (µs): 646,891493

CPU 7 DPC total execution time (s): 0,070237

CPU 7 DPC count: 8571

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