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Windows 7: WIN very slow, CPU close to 100% all of the time.

16 Mar 2012   #11

W7 Ultimate SP1, LM18.3 MATE, W10 Home, #All 64 bit
Safe Mode?

Laptops seem to run at least 50% more services, than Desktops.

I wouldn't worry about the RAM usage you mentioned (at this point anyway).

For example, FF with 23 tabs open (on my PC):
  • "Private Bytes" = 400 MB
  • "Working Set" = 425 MB
  • "Virtual Size" = 700 MB.

  1. Is it still unusable, when you have nothing running except Windows services (no programs)?
  2. Does it play DVDs properly, using your optical drive?
  3. Is your HDD running constantly/excessively?
  4. Do you have the same problems, if you run your laptop in "Safe Mode"?

My System SpecsSystem Spec
18 Mar 2012   #12

Windows 7

I think the issue was a virus. I did a lot of house cleaning. System Registry cleaning, and ran Malware. Right now it seems to work good again. I think these issues only arise after the computer sleeps and then you wake it up.
My System SpecsSystem Spec
18 Mar 2012   #13
Microsoft MVP


Streaming issues can be your DSL connection speed, needed Flashplayer or it's reinstall, resetting IE9 to defaults, etc.

Work through these troubleshooting steps.

In addition you may need to Clean Up Factory Bloatware - Windows 7 Forums
My System SpecsSystem Spec

18 Mar 2012   #14

Windows 7 Home Premium 64-bit

Might pay to check your cooling as well.

Doesn't take much of a build-up of muck to overheat a laptop.

Had similar issues with my AS5735 a while back, a good clean
of the fan and vents fixed it.
My System SpecsSystem Spec
19 Mar 2012   #15

Windows 7 home premium 32 bit

Yeah I would definitely check cooling (a pain on a laptop), as this was happening to my laptop. The fan was fried but before that it was always running. Got it cleaned and now all is right again. CPU usage is back to normal.
The other thing that might happen is a scan that was missed while sleeping might run upon waking. If there is more than one...well secunia PSI and an anti virus scan can pretty much swamp any system. When you are hitting 100% what is using most of that?
My System SpecsSystem Spec
19 Mar 2012   #16

Windows 7 Ultimate x64

1. Press "Ctrl," "Alt" and "Delete" at the same time to display the Windows Task Manager.

2. Go to the Process tab to see a list of currently running processes on your computer.

3. Look in the CPU column and locate programs that are using many CPU cycles. High CPU cycles can cause the CPU usage of a program to increase.

4. Right-click on the program and highlight "Set Priority" from the context menu. Select the "low" or "below normal" option to change the priority of the program.

5. Repeat Steps 3 and 4 to change the priority of other programs with high CPU usage.
My System SpecsSystem Spec
20 Mar 2012   #17

Windows 7

OK OK I found the issue. Malware has helped me identify the issue.

It's a Trojan.Clicker.CT. It is located in C:|Windows\SysWOW64\adbcnsl.exe.

How do I get rid of it?

Thanks again guys
My System SpecsSystem Spec
20 Mar 2012   #18

Windows 7 home premium x64

A recently updated version of malwarebytes should deal with that. I know you ran it recently but make sure it's up to date and run a full scan.
My System SpecsSystem Spec
20 Mar 2012   #19
Microsoft MVP


Malwarebytes will have a button to Clean Up Infections on what it finds.

After that I would run SFC -SCANNOW Command to check if System files have been damaged.
My System SpecsSystem Spec
20 Mar 2012   #20

Windows 7

It found it and quarantined it and then deleted it.
My System SpecsSystem Spec

 WIN very slow, CPU close to 100% all of the time.

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