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Slow PC? How to speed it up on Windows 10 and 11

7 concrete, free steps to make the PC faster, without reinstalling and without spending a thing.

Practical guide · time required ~30 minutes · difficulty: easy

“The PC is old, time to replace it”: that's almost never true. Even a 5-to-7-year-old computer with an SSD can still fly. Slowdowns almost always have specific, fixable causes. Here's what to do, in order of effectiveness.

1 Disable startup programs

It's the number one cause of a PC that's slow to boot. Almost every program you install tends to sign itself up to launch with Windows: after two years there are a dozen of them fighting over the disk and CPU all at once.

Open Task Manager (Ctrl+Shift+Esc) → the Startup apps tab, and disable whatever you don't need right away.

What you can safely disable

  • Yes: game launchers (Steam, Epic), printer utilities, the various brands' "updaters" and "helpers".
  • Think about it: cloud sync tools (if you use them every day, better leave them), work chat apps.
  • No: antivirus, audio drivers, system components.

Remember: disabling at startup uninstalls nothing. The program stays, it just doesn't launch on its own.

2 Free up disk space

Below 10-15% free space Windows struggles to breathe. Get space back starting with the easy stuff:

  • Temporary files and caches: often 5-30 GB, safely recreated as needed.
  • Recycle Bin: empty it (after checking there's nothing useful in there).
  • Downloads folder: the PC's "attic", old installers, ISOs, zip files already extracted.
  • Old Windows updates: clean them with the right tools, not by hand.

Read more: C drive full? How to free up space →

3 Uninstall programs you no longer need

Every installed program takes up space and often leaves services running. Go to Settings → Apps → Installed apps, sort by size and remove whatever hasn't been opened in months.

Important: always uninstall through the proper tool, not by deleting folders by hand from Program Files (you'd leave orphaned services and registry keys behind).

4 Check background processes

A stuck update, an antivirus scanning nonstop, a browser with 40 tabs: those are what eat up CPU and memory. In Task Manager → Processes, sort by CPU and by Memory and see what's at the top.

Close only what you recognize: don't end system processes (they're protected for a reason).

5 Check the temperatures

Fans full of dust = a CPU that slows itself down so it doesn't cook (it's called thermal throttling). If the PC heats up and slows down under load, this is probably the cause.

  • Blow the dust out of the vents and fans (with the PC off).
  • With laptops, don't use them on a bed or couch: they block the vents.
  • Temperatures are read from the sensors, not guessed.

6 Update Windows and the drivers

Updates aren't just about security: they contain stability and performance fixes. Go to Settings → Windows Update and install everything. Update the graphics card drivers from the manufacturer's website too.

7 Switch to an SSD (the real leap)

If the PC still has a mechanical hard disk (HDD), that's the bottleneck. Replacing it with an SSD is the one hardware change that truly transforms a computer: boot in seconds, programs that open instantly. It's also the only step in this guide that costs money, but an SSD is cheap and worth every cent.

Do steps 1-6 automatically

TurboFix checks the PC, tells you which of these causes applies (startup, space, processes, real temperatures) and fixes it in a few clicks. Free, in English, entirely local.

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FAQ

Is speeding up the PC free?

Yes. Every step uses free Windows tools or free software like TurboFix. The only thing that costs money, and only if an HDD is still installed, is buying an SSD.

Do I need to reinstall Windows?

Almost never. Reinstalling is the last resort: in the vast majority of cases the maintenance steps above are enough, with no data loss.

Are "optimizer" programs actually useful?

Some are, if they're honest and transparent. Be wary of those that show alarming numbers, run in the background all the time or promise miracles: they often slow things down more than they fix.

Keep reading: the glossary · C drive full: how to free up space · TurboFix features

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