10 ways to speed up a Windows computer

Some Windows 11, Windows 10, and Windows 8 users frequently experience slowdown issues. They can be sporadic or persist over time, which is obviously more annoying. Is your PC slow? To give it a second youth, apply these different tips without delay.

How to speed up a slow PC

Each year, new generations of PCs become more powerful, thanks to the latest technological advances. Technical progress thus makes it possible to reduce the performance problems which considerably plague the lives of users. Except that over time, the fluidity of the machines is eroded. And this even on the most impressive configurations. Malware, useless or greedy applications, dust, optimizations that are lacking … The factors that can explain the delays are legion... Here are 10 avenues to explore.

Start by restarting your machine

It is commonplace for many of you. But some users constantly leave their machine on. When the latter sticks its tongue out, a good restart often resolves the problems, erasing minor errors that cripple the system.

Identify greedy applications

Among the potential suspects causing an overall slowdown, we often find very hungry applications whose weight on CPU resources and RAM usage is significant.

  • To find out, access the task manager using the shortcut Ctrl + Shift + Esc.
  • Identify applications that dramatically increase CPU or memory usage.
  • To do this, observe the corresponding columns:

Task Manager

  • Right click on the overly greedy application or process (in this case Photoshop and Google Chrome).
  • Finally click on End of task (this command will in particular force an unresponsive application to close). Remember to save your work in advance when necessary.
  • If the use of greedy applications is essential, close other applications to blow your PC. This can prove to be of great help.

Close unnecessary tabs in the browser


Browsers are well known to overload the CPU and especially RAM as we have seen in the previous section. While publishers have made great strides in optimization in recent years, having too many tabs open in your browser is still bad enough and can slow your PC down considerably. So be sure to only leave really useful tabs open or follow these tips to save up to 95% RAM memory on a browser.

Take on the dust

How to clean your computer

Too much dust can overheat your computer, preventing the fans from working optimally. Your components, which require continuous cooling, will then stick out their tongues. Direct consequences: slowness, bugs, freeze, blue screen … It is therefore more than recommended to carry out regular cleaning.

  • First turn off and unplug your PC, then wait at least 10 minutes.
  • Open it up and remove larger pieces of dust by hand.
  • Then arm yourself with a bomb dry air then activate it in all the bowels of the machine to drive out the dust.
  • In hard-to-reach areas, you can use a cotton swab.

Clean up your PC by deleting temporary files

Having your hard drive almost 100% loaded can make a PC much slower. It is better to have several partitions leaving a good margin for the main one which houses the system and applications. To do this, you can in particular use Storage Assistant.

  • Go to the settings using the shortcut Windows key + I.
  • Click on System then on Storage.
  • Point your mouse over the section Temporary files.

Delete Temporary Files

  • The system will perform a scan. Then delete the suggested temporary files by clicking on Delete files.

How to delete temporary files

  • To finish, empty your trash.

To find out more, do not hesitate to consult our file which details how to free up hard disk space on a Windows PC.

Defragment the hard drive (HDD)

Having enough hard drive space isn’t always enough to speed up a slow PC. Over time and by copying and deleting files, fragmentation occurs. Which scatters fragments of files across different storage blocks or clusters of an HDD hard drive. Consequently, the reading of the files becomes slower which causes a decrease in performance. Hence the importance of regularly defragmenting the disk.

  • Write ‘Optimize’ in the search bar of the Start button.
  • Then open the app Defragment and optimize drives.
  • Click Optimize and wait (this may take a few hours).

Defragment disks

Disable launching applications on startup

At startup, it is very frustrating to have to wait several minutes before your machine is fully operational. To avoid this unpleasant feeling, especially at times when time is of the essence, the most effective solution is to disable the automatic launch of applications on startup. This saves precious seconds or even minutes. Here’s how to do it:

  • Go to task Manager by clicking on Ctrl + Shift + Esc.
  • Then go to the Startup section.
  • By right-clicking, deactivate the applications that you no longer want to launch automatically at start-up.

Windows startup applications

Uninstall unnecessary apps

You have been using your PC for months or even years. So the applications accumulate over time. There is a good chance that you will only open a fraction of this software at least once a month. Therefore, remember to do the housework once in a while, your computer will thank you!

  • Access the settings by typing Windows key + I then click on the System section.
  • Click on the Storage tab in the left column.
  • Then access the Applications and Features.

Applications and Features

  • Click on the application to delete then press the button Uninstall.

Uninstall Among US

Perform a regular scan to eliminate viruses and malware

A slow PC is one of the most typical signs of the presence of a virus. Getting real-time protection from antivirus software isn’t always enough. Do a thorough scan at least once a month with one of the best Windows antiviruses (Kaspersky Antivirus, Bitdefender, Eset, to name a few). It is also strongly recommended to pair the antivirus with a good anti-malware application like AdwCleaner or Malwarebyte.

Reinstall Windows without data loss

If the PC continues to row after exploring all the aforementioned solutions, the ultimate solution is to reinstall Windows without losing any data. But this reset will erase all installed apps. So keep your setups and licenses to put them back on the reset machine.

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