22 Sep

Why is my computer so slow?

“Why is my computer so slow?”
is a question we get asked a lot. A slow computer can be very frustrating and can waste lots of time. This process generally happens over a period of time, until one day, you realize you’re constantly waiting for things to happen.

There are many reasons why this happens, which we will outline in this article.


Browser Tabs

Each time you open a new tab, you are in fact running another instance of your browser. Some web pages can use a lot of CPU (Central Processing Unit) and RAM (Random Access Memory), so if you have 20 different tabs open, it could have a big impact on your PC. Try closing tabs once you are finished with them.

Browser Extensions

Most of our computer activities these days are internet based, so having an internet browser that runs well is essential. Modern internet browsers can use “plug-ins” or “add-ons” to give greater functionality than the browser would normally have. For example, a plug-in may create a button on your browser toolbar to share content to Facebook. The problem is that too many, or bad plug-ins can make your browser run badly. Plug-ins can also creep in the back door when you accidentally agree to the installation.

Is your browser running slowly? Book now to get this issue fixed.

Faulty Hard Drive

Apart from the most recent solid state drives, hard drives are mechanical devices and like anything else mechanical, they eventually wear out and fail. Laptops hard drives are also prone to damage if knocked or dropped while switched on. If your system takes a really long time to start up and remains painfully slow, it could suggest a failing hard drive. Think your hard drive might be failing? Are you asking yourself why is my computer so slow?

We can check it for you. Book now

Running too many programs

To run your programs, your PC needs enough processing power and RAM. If you have too many programs in memory or too many programs are accessing the CPU (Central Processing Unit) your PC can become slow and unresponsive. If shutting down some programs makes the PC faster again, it’s best to only have running the programs you need. Or you may want to consider upgrading to a more powerful PC.

A program is hogging your CPU

If a program is very demanding or is not working correctly, it can use most of the processing power of the PC. To resolve this the offending program needs to be identified to see why it is using so much CPU.

We can diagnose this. Book now

Power hungry or broken antivirus

Traditional antivirus programs schedule scans of your PC and can slow down your PC while this is happening. If this is the case for you, then changing the schedule to a time when you’re not using the PC will help. Better still, change to a more modern antivirus system which will have very little impact on your PC’s performance. We recommend Bitdefender Internet Security because it has been tested as the best antivirus and it will not slow down your PC. Antivirus programs, like any other program, can break. Because they are integrated into the operating system, when they break, then can cause the system to run badly. In this case, re-installing the program is the best course of action.

We can help with antivirus installation and repair. Book now

Infections – Malware, Junkware, Viruses

Whether it be pop up adverts, website redirections or more serious infections, malware can make PC’s run badly. If you have anti-virus or anti-malware programs and you are infected, then it may suggest they are not doing their job. We recommend removing existing anti-virus software and installing Bitdefender Internet Security. Once installed, it will track down and remove all infections.

Do you need help with this? We can upgrade your existing anti-virus to Bitdefender Internet Security. Book now

Too many auto-start programs

When a program is installed, it is possible that it will set itself to run automatically when your computer starts up. Too many auto start programs can make booting your PC take a long time. Some auto starts are essential for the program to run correctly, but others can be safely disabled.

Does your PC take ages to start up? We can help. Book now

Out of disk space

If your hard drive reaches 90% full, your PC will start to slow down and you will definitely be asking yourself, why is my computer so slow? Adding any more data will make the PC grind to a halt. If your drive is full, delete old files you don’t need and clean out system junk. This may be a short-term fix and either upgrading your hard drive or a new PC may be the solution.

Not sure how full your drive is? We can check for you and remove junk files from your system. Book now

Not enough RAM

If your PC runs fine until you start running programs, it may suggest that you just don’t have enough RAM. Today, the standard amount of RAM for a home computer is 8GB. This is enough for most domestic uses. Historically, manufacturers kept the price of a PC down by skimping on the RAM, sometimes only installing 2GB, meaning the PC was fine out of the box, but when programs were installed, they would slow down. Installing more RAM will resolve this problem and is pretty straight forward.

Not sure how much RAM you have? We can help. Book now


Pinpointing the cause of a computer running slowly without technical knowledge can be challenging. If you have been asking yourself, “why is my computer so slow?” and need help speeding it up, Geeks Remote Support can, with your permission, connect to your PC, diagnose and fix any problems quickly and affordably.

Book now, or call us on 02036376370

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