Windows 10 extremely slow after updating to 1909

Anonymous
2019-12-29T19:42:54+00:00

I have been using a PC with 800 M Hz AMD Phennom II processor and 8 GB RAM running 64-bit Windows 10 for several years. It has been running great until recently it became extremely slow after Windows update since November.  I noticed that the CPU and Memory usage changed from about 50% to close to 100%. The performance resumed after I restored the system to the earlier version. Today was the 3rd time I did this and I checked the current stable version is 1903, so I guess the problem was caused by the new update 1909. I am afraid it will become slow again after the automatic update. 

Please advise if there is a way to allow me continue to use this computer. 

Thanks!

Windows for home | Windows 10 | Windows update

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Kapil Arya 38,476 Reputation points Volunteer Moderator
2020-08-04T12:34:39+00:00

Hello,

Please try these suggestions:

Run System File Checker scan:

  1. Search for 'command prompt' using Cortana or Windows Search.
  2. From results, right click on Command Prompt and select Run as administrator.
  3. Type sfc /scannow command and press Enter key.
  4. Let the command complete and then reboot the machine.

If that doesn't works, try these steps:

  1. Search for 'windows powershell' using Cortana or Windows Search.
  2. From results, choose Windows PowerShell and select Run as administrator.
  3. Then type/paste following and press Enter key:

Repair-WindowsImage -Online -RestoreHealth

  1. Let the command complete, restart your system then.

If problem continues, perform clean boot and remove third-party programs slowing down your system:

https://support.microsoft.com/en-in/help/929135/how-to-perform-a-clean-boot-in-windows

Also, try updating to Version 2004 or latest version and see if it helps.

Hope this helps!

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  1. Anonymous
    2020-01-26T12:25:22+00:00

    I agree.  My PC was slow but I did not attribute it too the update as I was travelling.  Bought a new PC.  Now that I am home and had some time I realize it indicated it "migrated" the hard drive C during the update.  My hard drive is at 100% busy most of the time now and file transfers take forever.  What a disaster.

    Before realizing this was the problem I decided to get rid of a bunch of stuff to see if that helped, including windows.old!!!!!!!  because it couldn't be an update could it?!!!!  Now what do I do/

    Dell laptop Intel I3 processor. slower than the first pc I had 30+ years ago.  :(

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  2. Anonymous
    2019-12-31T17:19:34+00:00

    It is obvious from the number of reports that there are major problems going from 1903 to 1909.

    My Dell Inspiron running 64-bit Core i5 at 1.8 GHz with 8 GB ram became unusable. It seems the suggested solution is for all the users to do the debugging to discover where the problem exists.

    Horrible quality control and testing on Microsofts part.  I will stay with 1903 until those losers in Redmond produce a decent product.    ...or may Ubuntu Linux is a better answer

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  3. Anonymous
    2019-12-30T23:13:14+00:00

    Hi,

    Thank you for writing to Microsoft Community Forums.

    We understand your concern, as the PC became slow after the PC upgraded to Windows 10 1909. We appreciate your effort in providing us the detailed information on the issue.

    Meanwhile, put the PC in Clean Boot and see if you still have the performance issue. Refer the article How to perform a clean boot in Windows. A ‘clean boot’ starts Windows with a minimal set of drivers and startup programs. If the lag in performance does not reoccur in Clean Boot then please refer the section How to determine what is causing the problem after you do a clean bootto determine the root cause of the issue.

    Note: After you finish troubleshooting, follow the sectionReset the computer to start normally after clean boot troubleshooting to reset the computer to start normally.

    Let us know how it goes.

    Aditya Roy

    Microsoft Community – Moderator

    Thanks for your detailed information. I tried block some programs at the Startup tag of Task Manager but it didn't help. I think the problem was "memory leak" caused by recent update. I will try a Clean Boot to further diagnose the problem.

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  4. Anonymous
    2019-12-30T23:07:50+00:00

    If you already done some updates and pc slowed down,then you need to delete most of the .net framework updates.

    Since there's something wrong with your Windows 10 after an update. Another good option is to uninstall Windows 10 update and go back to the previous version. 

    If you're having problems with your PC, there are recovery options to use as well.

    I have been using "System Restore" to go back to previous version/setting when it slowed down. I will try uninstall the update if it happens again to see if it helps. Thanks!

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