[alisonmunandar]

My fan is little bit dusty after I check it

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Doesn't look that bad but never hurts to clean the heatsink.  To do it right you should remove the fan (not the heatsink).  Usually it's just 4 Phillips screws.  Make sure you put the fan back the same way.

 

I would uninstall Avast.  You have Microsoft Security Essentials running and you don't want two anti-viruses.  After you uninstall Avast, reboot and run process explorer again as before.

 

Let's also try Latency Monitor:

 

OK.  Let's try Latency Monitor:

Go to

http://www.resplendence.com/downloads

Scroll down to

System Monitoring Tools

and then find

LatencyMon 6.51

Click on Download free home edition

Save it then right click and Run As Admin.  It will install and then start the program.  
It will tell you to click on the Start button but there isn't one.  
Instead click on the green arrowhead (looks like a Play button).   Let it run for at least 20 seconds.  Then hit the red box to stop it.

Edit, Copy Report text to Clipboard then move to a REPLY and Ctrl + v to paste the text into a reply.

[RKinner]

Doesn't look that bad but never hurts to clean the heatsink.  To do it right you should remove the fan (not the heatsink).  Usually it's just 4 Phillips screws.  Make sure you put the fan back the same way.

 

I would uninstall Avast.  You have Microsoft Security Essentials running and you don't want two anti-viruses.  After you uninstall Avast, reboot and run process explorer again as before.

 

Let's also try Latency Monitor:

 

OK.  Let's try Latency Monitor:

Go to

http://www.resplendence.com/downloads

Scroll down to

System Monitoring Tools

and then find

LatencyMon 6.51

Click on Download free home edition

Save it then right click and Run As Admin.  It will install and then start the program.  
It will tell you to click on the Start button but there isn't one.  
Instead click on the green arrowhead (looks like a Play button).   Let it run for at least 20 seconds.  Then hit the red box to stop it.

Edit, Copy Report text to Clipboard then move to a REPLY and Ctrl + v to paste the text into a reply.

[alisonmunandar]

_________________________________________________________________________________________________________
CONCLUSION
_________________________________________________________________________________________________________
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. 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  0:05:37  (h:mm:ss) on all processors.


_________________________________________________________________________________________________________
SYSTEM INFORMATION
_________________________________________________________________________________________________________
Computer name:                                        WINDOWS7-PC
OS version:                                           Windows 7 Service Pack 1, 6.1, build: 7601 (x64)
Hardware:                                             JETWAY, HA21-85X
CPU:                                                  AuthenticAMD AMD A8-6600K APU with Radeon™ HD Graphics
Logical processors:                                   4
Processor groups:                                     1
RAM:                                                  7657 MB total


_________________________________________________________________________________________________________
CPU SPEED
_________________________________________________________________________________________________________
Reported CPU speed:                                   3899 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.

WARNING: the CPU speed that was measured is only a fraction of the CPU speed reported. Your CPUs may be throttled back due to variable speed settings and thermal issues. It is suggested that you run a utility which reports your actual CPU frequency and temperature.



_________________________________________________________________________________________________________
MEASURED INTERRUPT TO USER PROCESS LATENCIES
_________________________________________________________________________________________________________
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 event.

Highest measured interrupt to process latency (µs):   24701.987555
Average measured interrupt to process latency (µs):   21.637068

Highest measured interrupt to DPC latency (µs):       779.067734
Average measured interrupt to DPC latency (µs):       2.485453


_________________________________________________________________________________________________________
 REPORTED ISRs
_________________________________________________________________________________________________________
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):              163.755322
Driver with highest ISR routine execution time:       USBPORT.SYS - USB 1.1 & 2.0 Port Driver, Microsoft Corporation

Highest reported total ISR routine time (%):          0.019289
Driver with highest ISR total time:                   USBPORT.SYS - USB 1.1 & 2.0 Port Driver, Microsoft Corporation

Total time spent in ISRs (%)                          0.030218

ISR count (execution time <250 µs):                   87810
ISR count (execution time 250-500 µs):                0
ISR count (execution time 500-999 µs):                0
ISR count (execution time 1000-1999 µs):              0
ISR count (execution time 2000-3999 µs):              0
ISR count (execution time >=4000 µs):                 0


_________________________________________________________________________________________________________
REPORTED DPCs
_________________________________________________________________________________________________________
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):              1344.731213
Driver with highest DPC routine execution time:       USBPORT.SYS - USB 1.1 & 2.0 Port Driver, Microsoft Corporation

Highest reported total DPC routine time (%):          0.152250
Driver with highest DPC total execution time:         USBPORT.SYS - USB 1.1 & 2.0 Port Driver, Microsoft Corporation

Total time spent in DPCs (%)                          0.218155

DPC count (execution time <250 µs):                   389395
DPC count (execution time 250-500 µs):                0
DPC count (execution time 500-999 µs):                121
DPC count (execution time 1000-1999 µs):              3
DPC count (execution time 2000-3999 µs):              0
DPC count (execution time >=4000 µs):                 0


_________________________________________________________________________________________________________
 REPORTED HARD PAGEFAULTS
_________________________________________________________________________________________________________
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:                 msmpeng.exe

Total number of hard pagefaults                       9047
Hard pagefault count of hardest hit process:          6529
Number of processes hit:                              9


_________________________________________________________________________________________________________
 PER CPU DATA
_________________________________________________________________________________________________________
CPU 0 Interrupt cycle time (s):                       3.144302
CPU 0 ISR highest execution time (µs):                18.471146
CPU 0 ISR total execution time (s):                   0.211230
CPU 0 ISR count:                                      44951
CPU 0 DPC highest execution time (µs):                493.413183
CPU 0 DPC total execution time (s):                   1.356561
CPU 0 DPC count:                                      239165
_________________________________________________________________________________________________________
CPU 1 Interrupt cycle time (s):                       2.027690
CPU 1 ISR highest execution time (µs):                30.874070
CPU 1 ISR total execution time (s):                   0.043372
CPU 1 ISR count:                                      9736
CPU 1 DPC highest execution time (µs):                1344.731213
CPU 1 DPC total execution time (s):                   0.355902
CPU 1 DPC count:                                      32677
_________________________________________________________________________________________________________
CPU 2 Interrupt cycle time (s):                       2.489792
CPU 2 ISR highest execution time (µs):                163.755322
CPU 2 ISR total execution time (s):                   0.081490
CPU 2 ISR count:                                      16432
CPU 2 DPC highest execution time (µs):                816.357528
CPU 2 DPC total execution time (s):                   0.671326
CPU 2 DPC count:                                      65199
_________________________________________________________________________________________________________
CPU 3 Interrupt cycle time (s):                       2.767958
CPU 3 ISR highest execution time (µs):                22.401128
CPU 3 ISR total execution time (s):                   0.072181
CPU 3 ISR count:                                      16691
CPU 3 DPC highest execution time (µs):                578.617338
CPU 3 DPC total execution time (s):                   0.563692
CPU 3 DPC count:                                      52478
_________________________________________________________________________________________________________
 

[RKinner]

What do you have connected to USB ports?

 

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:                 msmpeng.exe

Total number of hard pagefaults                       9047
Hard pagefault count of hardest hit process:          6529
Number of processes hit:                              9

 

 

msmpeng.exe is part of Windows Defender.  Not sure why it is even running.  Perhaps MSE allows it but usually when you install most anti-viruses the first thing they do is turn it off.  Did you ever uninstall Avast?  You might try uninstalling MSE and then reboot and redownload and reinstall Avast.  Then rerun the Latency Monitor and see if that helps.

[alisonmunandar]

I've just unistalled Avast. MSE = Microsoft Security Essential?

 

Devices that connect to USB Post : Headphone, Mouse, Internet Receiver

Edited by alisonmunandar, 17 June 2018 - 12:47 PM.

[RKinner]

MSE is Microsoft Security Essentials.

 

What is an Internet Receiver?  Make and part number?

[alisonmunandar]

MSE is Microsoft Security Essentials.

 

What is an Internet Receiver?  Make and part number?

I mean it's for wifi...Sorry I don't know the correct name

[RKinner]

OK.  Understand.  Something like:

 

https://www.lifewire...dapters-2377825