Computer running slow

Summary

This guide helps you troubleshoot and resolve: Computer running slow. Follow the steps below to fix the issue.

Common Causes

Quick Fixes (Try These First)

1. Restart your computer — closes programs and frees memory.
2. Check disk space — free up space if your free disk space is below 10% of the total drive capacity.
3. Close unused programs — especially those running in the system tray.

Detailed Solutions

1. Restart Your Computer

This is the most effective fix for slow performance:

1. Save your work.
2. Click Start > Power > Restart.
3. Wait for the computer to fully boot up.

2. Check and Free Up Disk Space

1. Press Win + E to open File Explorer.
2. Right-click This PC > Properties.
3. Under "Devices and drives," check the free space.
4. If your free disk space is below 10% of the total drive capacity, clean up by:
   • Opening Settings > Storage.
   • Clicking Temporary files and deleting them.
   • Using Disk Cleanup (search for it in the Start menu).

3. Check for Background Programs

1. Press Ctrl + Shift + Esc to open Task Manager.
2. Click the Processes tab.
3. Sort by "CPU" or "Memory" to find heavy programs.
4. Right-click programs you don't need and select End task.

4. Disable Startup Programs

1. Press Ctrl + Shift + Esc to open Task Manager.
2. Click the Startup apps tab.
3. Disable programs you don't need at startup.

5. Check for Malware

1. Open Settings > Privacy & security.
2. Click Windows Security > Virus & threat protection.
3. Run a Quick Scan.

6. Update Windows and Drivers

1. Go to Settings > Windows Update and click Check for updates.
2. For a full walkthrough, see our article on How to update Windows.

7. Check for Failing Hardware

Failing or degraded storage drives (HDD or SSD) are a very common cause of extreme slowness, particularly in older machines. Signs of failing hardware include:

• Unusual clicking or grinding noises from the hard drive.
• Long boot times and frequent freezing.
• Blue screen errors or sudden crashes.

8. Add More RAM (If Possible)

• 8 GB is the minimum for everyday use.
• 16 GB is recommended for smoother performance, especially when running multiple applications.

When to Get Help

• If the computer is still slow after trying all the steps above.
• If you hear strange noises coming from the hard drive.
• If the computer overheats frequently or shuts down unexpectedly.
• If you suspect background management or patching agents may be affecting performance — our team can check whether scheduled maintenance is running during your working hours.

Still Having Issues?