How to Repair a Slow Computer for 2018 [Updated]

Last updated: October 8, 2018 at 1:11 am by Adam Dominik




Did you know that a slow computer is reported to be the most common complaint PC and desktop support technicians deal with on a daily basis? Not only that, it is also a trending question online being asked on many popular internet forums by computer users all over the world. You are not the only one.

The most common types of causes of slow computer performance are:

  • Windows settings which have somehow become misconfigured over long-term usage which require adjusting
  • Invalid, non-existing or corrupt Windows registry entries prevent programs or computer system components from operating correctly
  • Hard drive file fragmentation which has reached critical levels
  • Terrible web browsing experience due to running an old web browser or a web browser plagued with add-ons that chew far too much system resources

The shocking truth is you do not need to buy a new PC and you can always repair a slow running computer yourself, as long as it is not older than 10 years old.

Repairing a slow computer can be fixed and prevented with special computer repair software that detects and removes common causes of slow computers – take a look at PC Health Advisor.

The best repairs for a slow computer are all listed below. Some methods work better than others, but these methods are all ones you can easily do yourself without any expert computing knowledge. However, for those that do not want to tinker with their computer and want to leave it to the experts, then I highly recommend the computer optimization tool: PC Health Advisor. Click here to read more about it and why it is currently the best Windows software tool guaranteed to make your computer run faster. It has everything that is required to restore computer performance. There is a free download link for PC Health Advisor available.

Use PC Health Advisor to clean out the junk, repair registry entries and fix errors

PC Health Advisor is the easiest method to repair and fix your computer of errors and everything that is slowing it down. PC Health Advisor is able to search and repair the junk files, repair damaged or broken registry entries and the errors which cause your computer to slow down. The end result is a much improved and faster computer. PC Health Advisor features a class leading intelligent engine that is able to detect all computing issues which cause slow performance, find solutions for each of the problems and then automatically resolve them requiring only a few simple clicks from you. What really makes PC Health Advisor work so well and able it to be a class leader is the simplistic nature of the software. Literally, PC Health Advisor works in a two click approach, one to scan your computer followed by a second click to fix all the issues detected. Finish off the process with a reboot and your Windows machine will be fixed and performing nice and fast. Click here to learn more about PC Health Advisor.

Vastly improved and easier to use PC Health Advisor has just been released. Read more about PC Health Advisor here.

It is time to de-fragment your hard drive

Hard drive de-fragmentation is the process of arranging and ordering all the files sitting on your hard drive in a logical manner. This improves performance because the computer can easily find the correct file needed to load software. When a hard drive is fragmented, the files are scattered all over the hard drive, taking it longer to load software because it takes the computer much longer to find all the required files to properly load software or a program.

Clean up your web browser add-ons

A computer has a finite number of resources available to share amongst Windows and all the software programs you want to use so don’t fill your computer up with software for the sake of it. So that means deleting all the crap add-ons and additions to your web browser. Just because they are free doesn’t mean you must have it. They simply clog up your computer, slow down your web browser and can cause a computing disaster down the line.

Especially if you feel as though your web browser is playing up and not performing like it should be. You need to remove every toolbar you don’t use. I would recommend you start with eliminating all the ones you don’t use and the downloadable toolbars.

These downloadable toolbars contain injected ads (adware) that play when you are browsing, chewing your internet bandwidth and using up your computer’s resources.

You have too many programs running in the background limiting system resources

Another one of the most common reasons for a slow computer are because there are far too many programs running in the background. You will need to go through the Windows startup list and take a look at the programs being loaded during start up. Remove all programs from the start up list that you don’t frequently use. This will stop them from being loaded during start up and free up resources for everything else.

To do this if you are computer savvy, I highly recommend using “msconfig”. Within “msconfig” you can un-tick software programs you don’t want to be started up, drastically improving the speed of your computer as there is less hanging around in the background eating away at your CPU and RAM.

In Windows, do a search for “msconfig” and then click on the startup tab. Un-tick programs you don’t want loaded during start up, this will prevent them from running in the background.

If you want a quick fix and most importantly and easy fix, then PC Health Advisor would have to be recommended. It can easily resolve start-up issues with a simple Scan and Fix solution. Learn more about PC Health Advisor.

Restart your computer

It is probably the first question a computer desktop support or tech will ask you when asking them for help. I know I do! Have you restarted your computer?

Actually, come to think about it, if your computer has not been restarted recently, make sure you do so and come back to this guide before doing anything else.

Why is restarting your computer so important and effective? A restart gets rid of the current state of any software or program you have running. Anything that happens to be misbehaving or stuck will also disappear after a restart. When you restart, the computer or device will bring the system up from scratch, restarting all the software from scratch so it will work just as well as it was working before.

Ensure all drivers are up to date

Always keep up to date with all updates from Microsoft and computer hardware manufacturers, especially video card and motherboard drivers. They are constantly finding bugs, issues and in-compatibilities with software and accordingly release driver updates which fix these issues. Updating drivers can definitely improve computer performance as newer drivers have new features, better optimized code, contain bug fixes and are generally more efficient and better performing.

Update your computer’s drivers with the latest provided by your hardware manufacturers. You can download and run DriverFinder, which connects to a database of all the latest drivers available and installs the correct updated drivers for your computer.

Scan for malware and associated nasties

HINT: Try to avoid any Norton products as they are heavily CPU and RAM intensive. Basically anything by Norton is guaranteed to slow your computer down!

Today, generally speaking the root cause of computer problems and slow performance are due to malware and spyware infecting computers. Most of the time you don’t know your computer might be infected, with free tools like web browser plug-ins secretly coming with adware, which is a type of malware and spyware. Even if you have a well performing anti-virus program running on your computer, I still recommend you install and run a dedicated anti-malware tool. I would suggest installing PC Health Advisor for its simplicity, effectiveness and ease of usage.

Delete %temp% files which are prone to reducing performance

As a computer runs programs, temporary files are stored on the hard drive. Deleting these temp files can help improve computer performance. They are temporary, but they do amass and sit in the “Temp” folder until emptied. Once they reach a certain size and threshold they do slow your computer down because of the amount of space they steal from your hard drive, which your computer uses as virtual memory. Removing these files including those ones from your web browser should significantly boost your computer in performance and make it much faster.

Use the built-in Windows Disk Cleanup utility to delete temporary files and other files no longer needed on the computer.

Unfortunately, the Disk Cleanup may not delete every file in the temp directory. Therefore, I recommend deleting temporary files manually. To do this the quickest and easiest method, use the 1-Scan 1-Click approach of PC Health Advisor which includes removing all types of temporary internet files. Otherwise open “My Computer”, and select your local drive (usually C:\). Select the “Windows” folder and then open the folder titled “Temp”.

Delete everything you see in that folder. Don’t forget to empty the recycle bin!

Buy and install more RAM

If your computer is bordering three years old, it would be a good time to consider buying more Random Access Memory (RAM). Today, the absolute minimum a computer should have is 4GB of RAM, but I would recommend 8GB to be safe. By having lots of RAM your computer won’t need to use your hard drive as virtual memory. Accessing information stored in RAM is much quicker and easier for a computer than using your hard drive as memory. You will notice the hard drive light being constantly lit, it can be an indication the computer is using your hard drive as virtual memort and frequently swapping information between your RAM and hard drive. This slows performance right down.

Your computer is past its use-by date

If your computer is more than ten years old, the age of the computer could be the cause of the slow performance. I would consider an upgrade of RAM and a new HDD at the five year mark.

Let’s face it; if you have had your PC for this long, it is time for a new one. Your hard drive mechanically will be close to its life cycle and already be running extremely slowly. Any new program you want to install will run terribly simply because your hardware is so far out of date.

I recommend that you consider purchasing a new computer or accept that your computer is not going to be as fast as it was when it was new or come close to the power of a brand new computer.

There you Have it! – Time to Take Action Now

There you have it! Now you have the most solid performing solutions to repair a slow performing computer. The solutions are compatible with all versions of Windows. The next course of action is of course to get these issues repaired and have your computer running smooth and faster like it once used to. I highly recommend using PC Health Advisor to complete these tasks. PC Health Advisor is the Windows optimization tool that currently leads the industry; it is an all-in-one tool that has been speeding up computers since 2006! It is a powerful Windows optimization tool that makes speeding up and optimizing your Windows computer incredibly simple.

RECOMMENDED: Click here to auto-fix errors and speed up your slow computer immediately


Adam Dominik

Adam Dominik

Lead editor here at Fast PC Life, I’m a proud desktop support analyst since 2006, helping co-workers, clients, family and friends & now online readers resolve slow computing issues.

My most popular content pieces are: Scanguard, PC Health Advisor, PC Health Advisor & Speed Up Windows 10.