Decent PC turns slow/laggy from nowhere.

Hi,

My name is Cindy. I am sorry you are having this problem. I know it is really frustrating. I will do my best to help you with this problem.

Please note: This is a user-to-user community forum. We are users just like you who help others. We are not employees of Microsoft.

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Clear the history in File Explorer.

Open File Explorer.

Click on the three dots on the menu.

In the General section go to the privacy section and click on clear file explorer history.

Then click on the restore defaults in the same section then follow the prompts.

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Windows has a feature that allows users to scan for corruptions in Windows system files and restore corrupted files. I have enclosed the directions below. You can cut and paste the code.

1. Type CMD in the search box. Do not hit enter.
2. Select Run as Administrator then hit enter.
3. Then type without the quotes. "DISM.exe /Online /Cleanup-image /Restorehealth" and hit enter.

On the same page run the two scans below separately.

sfc /scannow

DISM /Online /Cleanup-Image /StartComponentCleanup

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You will want to make sure your computer is currently up to date.

This can be down by typing update in the search on the taskbar and opening the page.

Update the computer.

Click on additional or advanced options on the same page and update if necessary.

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Uninstall and reinstall the Graphic drivers

Please type Device Manager in the search and open the page.

Click on Display Adapters. You should now see the Drivers.

You will want to right click on the Display driver and uninstall it. not the NVIDIA Drivers if equipped on your computer).

Then restart the computer. Windows will reinstall the driver and many times fix the problem.

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You will want to go to the NVIDIA website and download the most recent drivers.

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Because the program can monitor traffic using the network card, try the following suggestions if you still have a problem.

Running the troubleshooter.

Please type Troubleshoot at the start and open the page.

Select Other Troubleshooters

Select Run by the Network Adapter.

Follow the prompts.

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Please click on the Windows Keys and the S key.

Type CDM on the search line (do not hit enter)

Select run as administrator. Then click on Run.

Enter each of the codes below in order.

ipconfig /release

ipconfig /flushdns

ipconfig /renew

netsh winsock reset

netsh interface ipv4 reset

netsh interface ipv6 reset

netsh winsock reset catalog

netsh int ipv4 reset reset.log

netsh int ipv6 reset reset.log

Then restart the computer and see if this fixes the problem.

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If this does not work, the steps below.

Please type Device Manager at the start and open the page.

Scroll down the page and click on Network adapter.

Right-click on the driver and uninstall it.

Then restart your computer. Windows will reinstall the driver and many times fix problems.

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Please let me know if you continue to have a problem.

Best Wishes,

Cindy

Note Standard Disclaimer: There are links to non-Microsoft websites. The pages appear to be providing accurate, safe information. Watch out for ads on the sites that may advertise products frequently classified as a PUP (Potentially Unwanted Products). Thoroughly research any product advertised on the sites before you decide to download and install it.

Hello!

I managed to solve my problem on my own.
My CPU was running at 0.78 GHz, I went into control panel > hardware and sound > power options > and changed the current plan's power management for my CPU from 5% to 100%. I am now running on 4.60 GHz and everything is smooth.
Thank you for your help!

Scan for malware by using Malwarebytes. I have attached a link below. You will want to use their free version.

https://www.malwarebytes.com/mwb-download

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Go to the support website for the maker of your computer such as Dell, HP, Lenovo, etc., and check for updates and bios updates.

Best Wishes,

Cindy

Hello!

Thank you for your reply, DISM.exe /Online /Cleanup-image /Restorehealth fixed it temporarily.
I have narrowed down the problem to my CPU running at a fixed 0.78 GHz.

Any ideas on what to do from here?

There's a lot of possibilities unfortunately. I can think of various things without much effort eg Power Options, throttling, BIOS issue, heat issue, driver issue. Windows issue, GPU issue, and the list goes on. All kinds of things could cause lagging.

Windows DWM plays a large part in the UI and can see various things. Of course the GPU by default plays a large role in that (and you could try disabling acceleration for the Windows UI in Display settings and see what happens). But, DWM would also affect games since DWM is used for that. Gaming mode affects it, HDR affects it, on so on lol.

But like that, all the things I listed above also can ultimately affect it. A whole lot of things are happening behind the scenes.

It may likely take a lot of effort to solve it.

Hope the best :)