I guess you often utter “why is my computer running slow?” when you try to open a program or running multiple programs simultaneously. Certainly most people will tell you – just get a new one! This is a bad suggestion. Before you spend hundreds or thousands of bucks on a new computer, why not carry out some speed adjustments and make your system running at high performance speed. Below are some of the speed tweaks you can try on your slow running computer to speed up your PC performance.

System Registry Errors

This is the most common factor why your system is running so slow over time. Many system users do not know anything about how to maintain their computer registry, and don’t realize its significance. The computer registry holds registry files that provide your programs the commands they require to run. Sooner or later, most of the entries become messy and corrupted, and your system will take a while to find the appropriate entries. In more difficult situations, the system will freeze if the entries are entirely missing.

To fix your system registry, you can download and install registry cleaner software to scan your registry for bugs. As soon as the mistakes are found, you can make the registry cleaner program to get rid of the errors. The entire process requires around just 10 minutes. After using a registry cleaner, you’ll find your computer has been performing like a new bought one. Below are some of the top best registry cleaners:

Insufficient Memory

why is my computer slow

Insufficient memory can also be a reason why your PC is so slow. There are two sorts of system memory that directly affect your system’s performance, namely RAM Memory and Graphic Memory.

RAM plays a vital role in the performance rate of your computer. The higher the RAM storage your system has the better it will perform. Windows 7, for instance, will show a poor performance if it has only a 512MB of RAM memory.

Graphic memory does not affect much of your system’s performance as far as you’re not into 3D games, photo editing or video editing software. If you’re a designer, advertiser, or gamer, you will need a high-end Graphic and RAM memory.

Adware and Spyware

This is another factor why your computer is running slow. It is found that almost all systems that are connected with the Internet access will get affected by adware and spyware. These files remain on your system to gather information regarding the sites you’re visiting, and send the data back to its origin. One or two pieces of spyware won’t cause any serious issue, but if your system is affected by hundreds of spyware, it certainly will run slow.

To eliminate the spyware, download and install anti-spyware cleaner program to find and eliminate all the spyware present in your computer. Below is some of the best anti-spyware software available on the market:

Remove Unused Programs

This is one of the major reasons why your computer is running slow. When you purchase a new computer the probabilities are there are hoards of programs and apps pre-installed onto it. Old computers can just gather up these over time. Most of these you never gonna use and some will often run on the background without any signs, slowing down your computer’s performance.

To eliminate these programs go to “Start” -> “Control Panel” -> “Uninstall a Program” and browse through the list, uninstalling/removing the ones you think you won’t need them.

If you’re not sure about which ones to keep and which ones to remove, use PC Decrapifier – a freeware that helps you find what to keep and what not to.

Remove Temporary Files

Whenever you use a web browser (e.g. Mozilla Firefox) all your browsing history stays back in the RAM memory of your PC. The same thing occurs when your download and install some program file. It’s just like keeping the package of your newly bought TV with you and by doing so it will help freeing up some memory space on your computer. To remove this entire junk click “Windows Key + r” combo to open Run utility and type in “%temp%” in the run dialogue box, and then delete all the files seen in the respective window. Then go to Recycle Bin and empty it.

Fragmented Hard Disk

why is my computer slow

Fragmented hard drive is also a major reason why your computer is running slow. It’s necessary to defragment your hard disk to help the system organize itself better and make a point that it runs flawlessly. Have in mind your hard disk as someone who actually wants to be organized but is constantly in a rush. Since your hard disk is running out of time, it might store pieces of a file here and bits of it there, instead of having them all together. This works well for some time, but everything gets scattered over time, and it makes your hard disk longer to find the right stuff and get proceeding. Defragmenting is like a literally huge clean up. Your hard disk will set up everything back in the appropriate location and, in turn, will be capable of proceeding faster.

Virus or Malware Infection

Slow computer performance and Internet slowdowns can be a sign of malware attack. To figure out if you have a virus issue, use an anti-spyware and anti-virus software to find it like Avast, Avira, AVG, Microsoft Security Essentials, etc.

Restart Your System


Every now and then, it’s a nice idea to restart your system. A system can’t finish few of its essential updates until you restart it. Restarting your system can also clear up memory resources bound off by whacky apps and programs.


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