How to Speed Up a Slow PC (Before You Spend a Dime)

Most slow computers aren’t broken. They’re just carrying too much. Here’s what I check first on the bench in Berkeley Springs — and most of it you can do yourself in an afternoon.

1. Do a real restart

On Windows 10 and 11, “Shut down” often doesn’t fully reset the computer because of a feature called Fast Startup. Use Start → Power → Restart instead. If your PC has been running for weeks without a restart, this alone can make a big difference.

2. Cut down what starts with the computer

A lot of programs sneak themselves into startup and sit in the background all day. On Windows, press Ctrl + Shift + Esc to open Task Manager, then open Startup apps (the “Startup” tab on Windows 10). Right-click anything you don’t need the moment you turn the computer on and choose Disable. It doesn’t uninstall anything — the program still opens when you click it.

On a Mac, go to System Settings → General → Login Items and remove the extras.

3. Free up drive space

A drive that’s nearly full slows everything down. Try to keep at least 15–20% of it free. On Windows, open Settings → System → Storage to see what’s taking up room, and turn on Storage Sense to clean temporary files automatically. Old phone backups, videos and the Downloads folder are the usual suspects. Move big photo and video folders to an external drive (after you’ve made sure they’re backed up).

4. Uninstall what you don’t use

Go to Settings → Apps → Installed apps and remove trial software, games you never open, and toolbars. One warning: be careful with “PC cleaner,” “registry fixer” and “driver updater” programs that show a scary scan and then ask for money. Many of them are junk themselves and make things worse.

5. Run updates

Open Settings → Windows Update and install everything, then restart. Update your web browser too. Updates fix bugs and security holes, and some of them help speed.

6. Scan for malware

Windows already has a good built-in scanner. Open Windows Security → Virus & threat protection → Scan options and run a Full scan. If you see pop-ups, a homepage you didn’t choose, or browser extensions you don’t recognize, remove those extensions and run the scan again.

7. Check the hardware

If you’ve done all of that and it’s still slow, the hardware may be the bottleneck. Open Task Manager and click Performance:

• Disk shows “HDD” and sits near 100% — you have an older spinning hard drive. Swapping it for a solid-state drive (SSD) is usually the single biggest speed-up an older computer can get, and your files and programs can be cloned over.
• Memory is always 80–90% used — more RAM may help. For Windows 11, 8 GB is the bare minimum; 16 GB is much more comfortable.

When to stop and call

Bring it in if the computer is loud and hot (often dust and dried-out thermal paste), if it freezes or blue-screens, or if you hear clicking from the drive. A clicking or very slow hard drive can be failing — back up your files first and stop using it heavily until it’s checked.

I’ll tell you straight whether a tune-up, an SSD, or more memory is worth it on your machine — or if it’s time to look at something newer.