A computer that's slow, takes two minutes to boot, or freezes at the slightest click: this is one of the most common frustrations. Before you consider buying a new one, know that you can often speed up a slow PC in a few simple steps. Here are 10 solutions, ranked from easiest to most technical, all safe for your files.
Quick answer: To speed up a slow PC, start by restarting your computer, disabling programs that launch at startup (Task Manager > Startup), freeing up disk space, and installing Windows updates. If the slowness persists, adding an SSD and more RAM will provide the biggest improvement.
1. Restart your computer
It seems obvious, but a PC left in sleep mode for days accumulates processes in memory. A proper restart (Start > Power > Restart) clears the memory and resolves many temporary slowdowns.
2. Disable programs from starting up
Many programs launch automatically with Windows and slow down startup. To speed up a slow PC, open Task Manager (Ctrl + Shift + Esc), go to the Startup, and disable anything you don't need at startup (drives, update tools, chat applications).
3. Free up disk space
A nearly full hard drive slows down the entire system. Go to Settings > System > Storage, enableStorage Sense , and delete temporary files. Also, uninstall any applications you no longer use.
4. Install Windows updates
Updates fix bugs and improve performance and security. Check in Settings > Windows Update that everything is up to date, including drivers.
5. Scan for malware
A PC that suddenly slows down may be infected. Run a full scan with Windows Security (built-in antivirus) or your security solution. Malware often consumes resources in the background.
6. Reduce the visual effects
Animations are nice but use resources. Type "Adjust the appearance and performance of Windows" in the search bar, then choose " Adjust for best performance," or simply turn off animations.
7. Clean up your browser
A browser with too many tabs and extensions becomes resource-intensive. Close unnecessary tabs, remove superfluous extensions, and clear the cache. This is often the real cause of a "slow PC," when it's actually the browser.
8. Check background applications
In Task Manager, on the Processes, sort by CPU or memory usage. You'll see which application is using the most resources and can then close or uninstall it.
9. Add an SSD (the biggest gain)
If your computer still uses an old mechanical hard drive, replacing it with an SSD will transform the machine: boot times will be in seconds, and applications will run instantly. It's the most cost-effective upgrade to speed up a slow PC that's a few years old.
10. Increase the memory (RAM)
If you keep many tabs and applications open at the same time, adding RAM reduces slowdowns. This is especially effective on computers with only 4 or 8 GB.
When should you ask for help?
If your computer is still slow after all these steps, it could be a failing hard drive, overheating, or a system that needs reinstalling. A technician can perform a quick diagnosis and save you from an unnecessary purchase.
Frequently Asked Questions
Why did my PC suddenly become slow?
A sudden slowdown often stems from an ongoing update, a full hard drive, malware, or an application crashing in the background. The Task Manager can help identify the culprit.
Does cleaning my PC erase my files?
No. Deleting temporary files, disabling startup programs, and clearing the cache does not erase your documents, photos, or emails.
A slow computer at home or in the office?
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