How to – Steps to speed up a slow Windows Computer

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If your Windows computer is running slow, there are several steps you can take to speed it up and improve its performance. Here are some general Steps to speed up a slow Windows Computer.

Troubleshooting computer problems can take some time when the root cause of the problem is not known. So be patient to try different probable causes to fix your issue. There is no one-step fix all solution usually.

Restart Your Computer:

Sometimes, a simple restart can resolve temporary performance issues. If this is the first time you experienced a slow Windows Computer, then you may try restarting your computer to check if the issue persists or not.  However,  if restarting your computer does not seem to solve the problem, then you may explore other options.

Check for Malware:

An infected computer is expected to run slower than usual. Therefore, before you spend time exploring other probable issues, you can scan your computer to see if virus infection is the cause of the slow computer.

  • Run a full system scan using a reputable antivirus software to check for malware, viruses, and other malicious programs that could be slowing down your computer.

 Free Up Disk Space:

Your computer will also perform slower if it is running out of this space especially if it is the drive where your windows operating system is installed.

  • To check if you are running off the disk space, just open Windows Explorer and have a look at the status of your hard disks consumption.
    If any of your hard disk partition is running low on disk space then Windows will indicate with red color. If that is the case, then you need to free up disk space and see if that solves the issue.
  • Remove unnecessary files and programs to free up disk space.
  • Use the built-in Disk Cleanup tool to clean temporary files, system cache, and other unnecessary items.

To open the Disk Cleanup tool in Windows, follow these steps:

  • Open File Explorer > Choose a Drive > Right-click on the selected drive and choose “Properties” from the context menu.
    On Windows 11, you may not see the Disk Clean up from the Windows Explorer drive properties. Press Start button and type ‘Disk Cleanup‘ to open the disk cleanup utility.
  • Disk Cleanup Button: In the Properties window for the selected drive, you will see a button labeled “Disk Cleanup.”
    Click on this button to launch the Disk Cleanup tool.
  • Select Cleanup Options: Once the Disk Cleanup tool opens, it will calculate how much space you can free up by cleaning various types of files. This process may take a moment. After the calculation is complete, you’ll see a list of file categories that you can clean up.
  • Choose Categories to Clean: In the Disk Cleanup window, you can check the check boxes for the types of files you want to clean.
    The categories typically include temporary files, system files, recycle bin contents, and more. You can click on the category names to see a brief description of what each type of file contains.
  • Start Cleanup: Once you have selected the categories you want to clean up, click on the “OK” or “Delete Files” button (the wording may vary depending on your Windows version). A confirmation message will appear to ensure you want to proceed.
    Click “Delete” or “Yes” to begin the cleanup process.

    The Disk Cleanup tool will start cleaning the selected files, and a progress bar will indicate the process’s status. This may take some time, depending on the amount of data to be cleaned. When the cleanup process is finished, the Disk Cleanup tool will close, and the selected files will be deleted, freeing up disk space on your drive.

On Windows 11, you can also use Storage Sense – to automatically clean temporary files for your.

Disable Startup Programs:

Some programs launch automatically during startup and can slow down your computer’s boot time.Disabling unnecessary startup programs will help your computer to boot faster and also speed up your computer as those programs will now start manually when your want.


  • Disable unnecessary startup programs using the Task Manager.
  • To disable unnecessary startup programs using the Task Manager in Windows, follow these steps:
  1. Open Task Manager: There are several ways to open the Task Manager:
    • Press Ctrl + Shift + Esc on your keyboard.
    • Right-click on the taskbar and select “Task Manager.”
    • Press Ctrl + Alt + Delete and choose “Task Manager” from the options.
  2. Switch to the “Startup” Tab: In the Task Manager window, click on the “Startup” tab. This tab displays a list of programs that start automatically when you log in to your computer.
  3. Disable Startup Programs: To disable a startup program, right-click on the program you want to disable and select “Disable.” Alternatively, you can select the program and click the “Disable” button at the bottom right corner of the Task Manager window.
  4. Verify Disabled Status: The disabled programs will now show as “Disabled” in the “Status” column. This means they won’t start automatically the next time you log in to your computer.

Change your power settings

If you’re using  “Power saver” plan, you’re slowing down your PC. “Power saver” plan reduces your PC’s performance in order to save energy. Changing your power plan from “Power saver” to “High performance” or “Balanced” will give you some performance boost.

Steps to change the power settings in Windows computer:

  • Launch the Control Panel, then select Hardware and Sound > Power Options.
  • Here you can see which power plan is in use currently.
  • You’ll typically see two options: “Balanced (recommended)” and “Power saver.” (You may also see other plans depending on your make and model)
  • To see the “High performance” setting, click the down arrow “Show additional plans.
  • To change your power setting, simply choose the one you want, then exit Control Panel.

Update Windows and Drivers:

Make sure your Windows operating system and device drivers are up to date. Windows updates often include bug fixes and performance improvements.

Adjust Visual Effects:

Windows has various visual effects that can consume system resources. Consider adjusting these effects for better performance:

  • Right-click on “This PC” or “My Computer” and select “Properties.”
  • Click on “Advanced system settings” on the left.
  • Under the “Performance” section, click “Settings.”
  • Choose “Adjust for best performance” or customize specific visual effects as per your preference.

Manage Virtual Memory (Pagefile):

Windows uses virtual memory (pagefile) to supplement RAM. Ensure it is managed correctly:

  • Right-click on “This PC” or “My Computer” and select “Properties.”
  • Click on “Advanced system settings” on the left.
  • Under the “Performance” section, click “Settings.”
  • Go to the “Advanced” tab and click “Change” under Virtual Memory.
  • Select “System managed size” or customize the size based on your RAM size.

Disable Windows Search Indexing:

If you don’t use Windows Search often, you can disable indexing to save resources:

  • Open “Control Panel” and search for “Indexing Options.”
  • Click “Modify,” then uncheck locations that you don’t need to be indexed.

Clear Browser Cache:

If you observe that your computer appears to be slow when you’re using the web browser then you can also try clearing the browser cache to see if that speeds up your browsing experience.

Use Performance Troubleshooter:

There may be a problem with your computer but you may not be able to find it yourself. In that case you can use the Windows performance troubleshooter to let Windows find out problems for you and apply problem solutions if available.

Windows includes a built-in Performance Troubleshooter that can help identify and fix performance-related issues.

  • Go to Control Panel\All Control Panel Items\Security and Maintenance

Starting the Windows Performance Troubleshooter is a straightforward process. The Performance Troubleshooter is a built-in tool in Windows that can help you identify and fix performance-related issues on your computer. Here’s how you can start it:

  1. Open Control Panel: One way to access the Performance Troubleshooter is through the Control Panel.
  2. Find and Run Troubleshooters: In the “System and Security” category, look for the “Security and Maintenance” option.
    Under it, you should see “Troubleshoot common computer problems.”
    Click on this link to open the Troubleshooting window.
  3. Run Performance Troubleshooter: In the Troubleshooting window, scroll down until you find the “System” section. Under it, you should see “Performance.” Click on “Run the troubleshooter” next to “Performance.”
  4. Follow the Troubleshooter Instructions: The Performance Troubleshooter will now run and attempt to detect and resolve performance-related issues on your computer. Follow the on-screen instructions, if any, to proceed with the troubleshooting process.
  5. Review and Apply Fixes (if any): After the troubleshooter completes its scan, it will present a list of issues it found and possible solutions. Review the suggested fixes and apply them as necessary.

Clean Registry

The registry is an essential part of the Windows operating system, and it plays a crucial role in how Windows functions and interacts with installed applications and hardware components. The Windows Registry tracks and controls everything about the way Windows works and looks. That includes information about where your programs are stored, which DLLs they use and share, what file types should be opened by which program, and just about everything else.

The Registry becomes messy over time. Sometimes, when you uninstall a program, that program’s settings don’t always get cleaned up in the Registry. So over time, it can get filled with countless outdated settings of all types. And that can lead to system slowdowns.

To clean the Registry, you can use some Registry cleaner tools. There are plenty available – some paid, some free. Even free Registry cleaners will do a good job. CCleaner for example has free version which you can use to clean registry. Make sure you backup the registry before you clean, just in case.

Upgrade Hardware:

If your computer is still slow, consider upgrading its hardware components, such as adding more RAM or replacing the hard drive with a solid-state drive (SSD).

Adding additional RAM or upgrading the hard disk to a solid state drive is a good investment. You will see visible improvements in the system performance.


Remember that the effectiveness of these steps can vary depending on the specific configuration and condition of your computer. If you are unsure about any step or encounter problems, it’s always a good idea to seek help from a tech-savvy friend or a professional technician.


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