Why Is My Computer So Slow All of a Sudden? (11 Problems with Solutions)

Last Updated on January 8, 2023 by Tech Queries Team

When you buy a computer, it works very fast. However, as you keep using it, it slows down eventually. This happens with all computer users. So, we came up with some reasons why a PC slows down.

Also, recently one of our readers asked us Why Is My Computer So Slow All of a Sudden? Well, if your Computer slowed down all of a sudden, there might be other issues, which will also be discussed in this article.

Why Is My Computer So Slow All of a Sudden?

1. Malware:

I don’t want to scare you but, Malware is the top reason to slow down a PC. There are many types of Malware, and it is hard to detect them manually. This might be the answer to Why Is My Computer So Slow All of a Sudden?

The simple solution is to get antivirus software. Before that, you need to make sure whether your Computer has Malware. So, check out this article on How to tell if your Computer has been Hacked Windows 10.

Whether you are getting free antivirus software or paid one, get it from the official website. Installing pirated antivirus software can further increase the problem. However, I prefer paid antivirus as they are better at detecting all types of Malware, they keep updating the virus database, and they have better support.

In my opinion, Kaspersky is the best premium antivirus, and Avira is the best free antivirus.

Why Is My Computer So Slow All of a Sudden, Why Is My Computer So Slow Windows 10, Why Is My Computer So Slow, Why Is My PC so Slow

However, an Antivirus Software itself can slow down the PC a little bit because they take too many resources. But, there is nothing we can do about it, besides upgrading the Hardware.

2. Installing Multiple Antivirus:

Remember this thing, installing multiple Antivirus (Security) plugins won’t give you double protection. One of the dumbest things I did with my PC when I was a kid was installing two Antivirus Software. As I described before the Antivirus takes a lot of system resources and my Hardware was not powerful enough to run both. If you did anything similar, remove other antivirus programs through Safe Mode. 

3. Hardware Fail:

Speaking of Hardware, one of your Hardware components might fail, due to which you can notice a sudden slow down of your computer. Some Hardware can result in a complete Shutdown. However, when you use multiple RAMs, one failed stick could slow down your PC. Other than that, the Hard Disk drive can have Bad Sector, which is also a reason for the PC to Slow down.

4. Filled Up Hard Disk:

If your Hard Disk has very little free space, it could also slow down the PC. Especially, make sure your C drive has enough free space because all the programs create temporary files in the C drive.

5. Lots of Programs Installed:

If you have recently installed several programs, they might be running in the background and slowing down the PC. So, try uninstalling the recently installed programs, then restart the PC and see if the problem still exists.

Why Is My Computer So Slow All of a Sudden, Why Is My Computer So Slow Windows 10, Why Is My Computer So Slow, Why Is My PC so Slow

6. Web Browser Tabs and Plugins:

Another reason for your computer to slow down all of a sudden is if you have installed several plugins on your web browser. These plugins are stored on the C Drive and take lots of computer resources. Besides that, opening lots of Tabs on your browser can also slow down your PC temporarily.

7. Software Updates:

You may not think this as a big issue, but they are also one of the reasons to slow down the PC. The latest version of the programs might require more hardware resources, and as you update them without updating the hardware, it might slow down the PC. 

However, it is mandatory to update essential programs like Antivirus Software, Windows OS, Graphics Card Drivers, etc. Some of the programs that make a high impact on your Hardware are Video Editing Tools, Photography tools, and Designing Software. 

These are the answers to Why Is My Computer So Slow All of a Sudden. There are also several other things that slow down a computer from time to time.

Why Is My Computer So Slow All of a Sudden, Why Is My Computer So Slow Windows 10, Why Is My Computer So Slow, Why Is My PC so Slow

More Reasons on Why your PC Slows Down:

  • 8. Hardware: You may have got the latest hardware when buying a PC, but they wear out as time passes. So, if you are experiencing a slow PC, you might want to update the RAM and processor of your PC.

Check out RAM Buying Guide and CPU Buying Guide here.

  • 9. Start-up Programs: When you install programs, some of them are added to the Startup program list. So, they start along with Windows, which makes your PC slow, especially for the first few minutes of the system startup.

Here is a tutorial on How to Disable Startup Programs.

  • 10. Running Lots of Programs: If you are a multi-tasker, you should have better hardware (CPU and RAM), or it will slow down your PC.
  • 11. Dust in PC: You might think, how can dust impact PC speed. Well, it can, in long term. When there is dust on your fans and components, the components will heat up, which causes them to underperform. That would also result in a system slowdown.
Why Is My Computer So Slow All of a Sudden, Why Is My Computer So Slow Windows 10, Why Is My Computer So Slow, Why Is My PC so Slow

Conclusion:

So, those who were wondering Why Is My Computer So Slow All of a Sudden, these might be the reasons. You can look into these issues and make changes to speed up your PC. If your PC is still running slow after all your efforts, upgrade the Hardware (especially CPU & RAM) and reset (format) the computer. Also, check out our article on How to Speed up the PC

Leave a Comment