Computer running slow (causes, troubleshooting, fixes, desktop, laptop) (After (un)installing programs)

Every program you install (or uninstall) in your computer, modifies the registry. The registry is a vast library of system settings - settings that can sometimes lead to blue screens and other instabilities. Even when programs are uninstalled, their registry settings can stay behind.

The settings are useless to the daily operation of your PC, but they can cause conflicts and errors. Your computer continues scanning these error-ridden registry entries, thus slowing everything down. As a result of this, your computer crashes.

Cleaning the registry manually is not an easy task. Luckily, software which can clean the registry instead of you and fix a slow computer do exist.

Ccleaner - for Windows users or Ccleaner for Mac users is one of the best for this task. Other software include Advanced SystemCare (MacBooster - Mac OS), Wise Cleaner (Windows only) etc.

All you have to do is to install one of them, follow the user-friendly instructions and leave the rest to them. Make sure to scan your computer regularly (at least once per week).

Sometimes, the answer to "why my computer is running slow and freezes?" is an unresponsive piece of software running in the background, and draining the computer's resources is the reason. Restarting can help if your computer gets slow, because it will close software which are running in the background (and using your computer's resources) even though they're not needed anymore, or if a software has become unresponsive. Also, restarting the computer should help if you haven't shut your computer down for some time and it performs tasks slowly.

If you own a Dell computer (desktop or laptop) and if you wonder "why my computer is running slow and freezes," you can contact their technical support on 1-800-624-9897, Monday-Friday 7:00 am to 7:00 pm, and explain them the situation. They will help you resolve the issue as soon as possible.

If you're not from the United States, you can find the correct support hotline on Dell's website.

If you own an Acer computer (desktop or laptop), and if you have the "my computer loading slow" issue, you can contact their technical support on 866-695-2237, 24/7, and explain them the situation. They will help you resolve the issue as soon as possible.

If you're not from the United States, you can find the correct support hotline on their website.

If you own an HP computer (desktop or laptop), you can contact their technical support on 800-407-4005, 8am - 8pm ET Mon. - Fri., and explain them the situation. They will help you resolve the issue as soon as possible.

If you're not from the United States, you can find the correct support hotline on their website.

While you are browsing the Internet, you might accidentally (or deliberately) install extensions. They usually change your homepage and offer you various games, programs, music, and other content you are not interested in. But, they can also slow down your browser and computer, because the extensions will require more of your computer's resources. To resolve computer speed issues while browsing the net, the best solution is to remove the extensions.

To remove browser extensions if you use Google Chrome:

1. Click on the three-dot icon, select More tools and click on Extensions;
2. Click on the activate/deactivate toggle in the extension box;
3. Click on the Remove button.
   
   

   
   
   

To learn how to remove browser extensions from other web browsers, check out the how to remove browser extensions solutions.

Another reason for the computer running slow issue can be the presence of virus(es) and other types of malicious software. Viruses can make your computer very slow, as they are designed to harm you in every possible way (e.g. they can prevent you from browsing the net with the speed you pay for, to play games, videos, etc.). The solution is to remove them, however, there are some viruses which may bypass your antivirus scanner, which is why it's imperative that you choose a trustworthy solution. Removing the virus is just one small step. What you should really focus on reducing the risk of viruses entering your computer again, by following the tips below:

• Don't open emails from senders that aren't trustworthy;
• Don't install programs from other websites than the developer ones;
• Update your computer's operating system regularly;
• Update the antivirus software regularly;
• Avoid websites whose content doesn't seem right (e.g. websites offering you a free trip).
  
  

Learn more about how to protect your computer and how to clean it from viruses and other forms of malicious software through the easy-to-follow computer virus protection guide.

A good communication between your computer's hardware components and the operating system is made possible thanks to the drivers. Installation and regular update of the drivers is a must, in order to fix a slow computer, and to be able to use your computer's full potential. 

You can update drivers following one of the approaches below:

1. Through Windows Device Manager, by right-clicking a driver, and selecting Update Driver Software... 
   
   

   
   
   

2. By downloading and installing the latest version of the drivers from your computer manufacturer's website (you will need to enter your computer's model number there - click here to learn how to find the model number);
3. By installing a program which will keep your drivers up-to-date all the time.
   
   

Note: For more information on installing and updating drivers, the how to download drivers and how to update drivers guides can assist you.

Asking a tech-savvy friend for assistance with speeding up your computer is a good way to fix this issue, as maybe it would take your friend 5 minutes to isolate the issues, as opposed to the 1+ hours that could take you, if you do research.

If you own an Asus computer (desktop or laptop), a slow computer fix would include contacting their technical support, on 1-888-678-3688, 24/7, and explain them the situation. They will help you resolve the issue as soon as possible.

If you're not from the United States, you can find the correct support hotline on their website.

If you own a Lenovo computer (desktop or laptop), you can contact their technical support on 1-855-253-6686, Monday - Friday 9am - 9pm EST, and explain them the situation. They will help you resolve the issue as soon as possible.

If you're not from the United States, you can find the correct support hotline on their website.

If you own a Msi computer (desktop or laptop) and you are not sure about the reason for computer running slow, you can contact their technical support on 1 888 447 6564, Monday-Friday 6:00am - 6:00pm PST, and explain them the situation. They will help you resolve the issue as soon as possible.

If you're not from the United States, you can find the correct support hotline on their website.

If you own a Toshiba computer (desktop or laptop), you can contact their technical support on 800-457-7777, 24/7, and explain them the situation. They will help you resolve the issue as soon as possible, by providing you with many ways to fix a slow computer.

If you're not from the United States, you can find the correct support hotline on their website.

Every activity you do on your computer leaves residues. The residues such as browsing history, temporary files, etc. accumulate and the computer becomes slower. Even though they are made to make operations faster, if they become corrupt, they turn out to do quite the opposite. In order for you to improve the computer's speed and performance, you need to do a system cleanup.

Windows offers a utility known as Disk Cleanup. To run this tool, follow the steps below:

1. Go to Start menu and type Disk Cleanup in the start menu search box;
2. Select the drive you want to clean up first by clicking the small arrow and click OK;
   
   

   
   
   

3. Under Files to delete, select the file types to get rid of (by ticking the checkboxes next to them) and click on OK.
   *Repeat this for each drive separately ( "C:" "D:" "E:" and etc.).

   
   

   

Everything we do on your computers leaves residues known as temp files. A small amount of temp files won't do harm. However, a greater amount of temp files can slow down the computer.

Cleaning temp files manually is not an easy task, as it's hard to tell what can be deleted, and what not. This is why it's best to download and install dedicated software like CCleaner, Advanced Systemcare (which are one of the best for the task, according to users), and scan and clean your computer on a weekly basis.

If you own a Samsung computer (desktop or laptop), you can contact their technical support on 1-800-726-7864, 24/7.

If you're not from the United States, you can find the correct support hotline on their website.

One of the reasons why computer is slow may be the amount of fragmented files. When you install and uninstall applications or when you move files, you leave behind leftovers known as fragmented files. Fragmented files can slow your computer down if they aren't taken care of.

Windows has an easy-to-use built-in utility that defragments your hard drive, called Disk Defragmenter.

If you use a hard disk drive, to run the utility, follow the steps below:

1. Open the start menu and type Disk Defragmenter or Defragment and Optimize Drives;
2. Right-click it and Run as Administrator;
3. Select the partition you want to defragment (Local Disk "C:" ; "D:" etc.);
4. Click on Defragment Disk and wait until the defragmenting process is completed.
5. Make sure to defragment all the drives on your computer ( "C:" "D:" "E:" and etc.) at least once per month.
   
   

Note: If you are using SSD (Solid-state Drive) DO NOT DEFRAGMENT IT, because if you do, you might damage it. SSDs store data in a sequential order (as opposed to random order).

Also, don't defragment the System Reserved partition, because it is meant only for system files, which are important for the computer.

One of the reasons why computer is slow is the number of programs running in the background. Some programs installed in your computer run in the background without your knowledge, and they occupy significant amount of the computer's RAM memory, which is one of the main reasons why your computer is running slowly. By closing some programs you don't need at the moment, you will free up more of the computer's RAM memory and increase your computer's speed.

To learn how to close unnecessary programs, check out the how to close (quit) programs guide.

This is a must-do. Remember: an update a day, keeps the repair guy and hackers away. Also, with every update, improvements are introduced, as well as new features. To update Windows to the latest version, follow the steps below:

1. Open the start menu and type Check for updates;
2. Click on the button that will appear;
3. If there are updates available, tap on the Install button;
4. Wait for the updates to install and don't interrupt the process.
   
   

If you don't know how to check for updates and update your operating system, check out the don't know how to update the operating system solutions.

If your desktop computer or laptop started running slow after you have installed new programs or games, it is possible that one of them is slowing down your computer. Uninstalling the recently installed programs and installing them one by one, to identify the culprit, should fix the problem.

To learn how to uninstall programs, check out the don't know how to uninstall a program / application solutions.