Is your Windows computer running sluggishly? Follow these step-by-step instructions, complete with specific commands, to troubleshoot and optimize its performance.

Step 1: Check System Requirements

  • Ensure your computer meets the recommended specifications for your version of Windows.

Step 2: Run Disk Cleanup

  • Press Win + S, type “Disk Cleanup,” and select the utility.
  • Choose the drive you want to clean and follow the prompts.
Slow Windows computer

Step 3: Disable Startup Programs

  • Press Ctrl + Shift + Esc to open Task Manager.
  • Navigate to the “Startup” tab, right-click on unnecessary programs, and select “Disable.

Step 4: Manage Background Processes

  • In Task Manager, go to the “Processes” tab.
  • Identify resource-intensive processes and end unnecessary ones.

Step 5: Update Windows

  • Press Win + I, go to “Update & Security,” and click “Check for updates.
  • Install any pending updates for Windows.

Step 6: Scan for Malware

  • Use Windows Security (Windows Defender) or install a reputable antivirus program.
  • Perform a full system scan for malware.

Step 7: Check for Resource-Hungry Apps

  • Open Task Manager and identify apps using a high amount of CPU or memory.
  • Consider closing or uninstalling resource-intensive applications.

Step 8: Adjust Visual Effects

  • Press Win + S, type “Performance,” and select “Adjust the appearance and performance of Windows.
  • Choose “Adjust for best performance” or customize visual effects.

Step 9: Optimize Power Settings

  • Press Win + S, type “Power & sleep settings,” and select “Power & sleep settings.
  • Adjust power settings to balance performance and energy efficiency.

Step 10: Update Device Drivers

  • Right-click on the Start button and select “Device Manager.
  • Update drivers for graphics, network, and storage devices.

Step 11: Check for Hard Drive Errors

  • Press Win + S, type “Command Prompt,” right-click, and select “Run as administrator.
  • Type chkdsk /f and press Enter to check and repair disk errors.

Step 12: Adjust Virtual Memory

  • Press Win + S, type “Performance,” and select “Adjust the appearance and performance of Windows.
  • Go to the “Advanced” tab and adjust virtual memory settings.

Step 13: Upgrade Hardware (If Necessary)

  • If your computer is still slow, consider upgrading RAM or switching to a faster storage solution.

Step 14: Monitor Temperature

  • Use third-party software to monitor CPU and GPU temperatures.
  • Overheating can cause performance issues.


By following these steps and executing specific commands, you can troubleshoot a slow Windows computer and optimize its performance for a smoother user experience.

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