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7 Actionable Tips for Windows 10 Running Slow

By Emily Watson, Monday, July 22, 2019

It must be irritating when it takes a long time for your PC to load the desktop when it starts up or to watch the software being stuck and there is nothing you can do but wait! If the hardware of your computer is not out of date but your PC with Windows 10 OS still runs very slowly, don't worry, you are not alone. Many people have suffered the same problem.

There are many possible reasons that cause Windows 10 to run slowly. In this tutorial, several most possible causes slowing down your Windows 10 will be listed and respective solutions will also be exemplified.

1: Your Computer Runs for a Long Time without a Reboot

If you have used your computer for a long time without giving it a break, there may be a lot of remains of software still running even if you have closed them, as a result of which your PC will run slowly. If this is the case of your computer, reboot it directly and see if it runs faster.

2: Not Enough Free Hard Drive Space

If your hard drives do not have enough storage for temporary files used by software, your PC might also run slowly. You need to delete those redundant data and files on your hard drive especially on your C Drive.

Step 1: Type Storage into the search box into the taskbar and click Storage in the result.

Open Storage in Settings

Step 2: Turn on Storage sense which helps to delete temporary files automatically.

Enable Storage Sense in Settings

Step 3: Click This PC, and you will see a list of folder options which include basically all your applications and files on C Drive. Choose those you do not need and delete them manually.

C Drive Storage Usage

Step 4: Do the same thing to the rest of your other drives.

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3. The computer is Infected with a Virus or Malware

Virus and malware are dangerous to a computer. Computers infected by virus or malware tend to run slow. The common way to remove virus and malware is to use some existing antivirus software. If you do not want to download any antivirus software to your computer, you can just use Windows Command Prompt to find and remove virus and malware.

Step 1: Type cmd into the search box in the taskbar, right-click Command Prompt and select Run as administrator option.

Step 2: Enter the commands "attrib e:*.* /d /s -h -r -s" into Command Prompt (Change letter e to the drive letter of the hard drive you want to remove virus or malware from). And then Command Prompt will remove the virus from your drive.

Remove Virus with CMD

4. Too Many Start-up Programs

Many programs will be set as Start-up Programs with or without your permission. You need to disable those applications that run at start-up but you seldom use.

Step 1: Press Windows + X keys simultaneously and you will see the Quick Link menu on the left corner. Select the Task Manager option.

Step 2: In the pop-up Task Manager, select the Start-up tab.

Step 3: In the list of programs that run at start-up, find those you seldom or never use, right-click on those programs and select disable.

Task Manager

After that, your computer will be faster when it is restarted.

5. Too Many Background Programs

Maybe your Windows 10 runs slowly only because you open too many programs at the same time. Use Task Manager to find out background programs that take up too much of the memory and choose to close them.

Step 1: Open Task Manager as mentioned above.

Step 2: Select the Processes tab. Then you can click Memory column to sort the programs by memory they use.

Task Manager Memory Tab

Step 3: Right-click on the unneeded background programs and select End task to close them.

6. Corrupted Windows System Files

Another possible reason for your slow Windows 10 is that the Windows system files are corrupted. Windows 10 provides users two tools to fix corrupted Windows system files with PowerShell.

Step 1: Type PowerShell into the search box in the taskbar. Right-click Windows PowerShell and click Run as administrator.

Open PowerShell

Step 2: In PowerShell, you can use commands to repair the corrupted system files with DISM(Deployment Image Service and Management Tool) and SFC (System File Checker)

Run DISM: Type in "dism.exe /Online /Cleanup-image /Restorehealth", hit Enter and DISM will replace the corrupted Windows system files automatically.


Run SFC: Type sfc /scannow and press Enter.


Step 3: After DISM/SFC finishes replacing the corrupted Windows systems files, reboot your computer.

Now your computer will run much faster after restarting up if the slow running speed is caused by corrupted Windows system files.

7. Windows Version or Other Software is Out of Date

If your PC with Windows 10 still runs slowly after you have tried all the solutions above, maybe that is because some up-to-date programs are not compatible with the old Windows 10 system, try updating your Windows 10 to the latest version and the software you frequently use. Hopefully, you can have a faster experience on your Windows 10 after reading this tutorial. 

If you cannot solve this problem by yourself, describe your problem in the comments and we'll see what we can do to help.

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