Computer suddenly freezes in Windows 10/8/7? Here are 10 reasons for this problem and some tips.

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Do you find your computer suddenly freezes in Windows 10/8/7 when playing games, watching videos, starting programs, booting Windows, etc.? Read this article to learn 10 reasons your computer is slow and get tips on how to fix PC slowness so you can make it run faster.

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My computer freezes while playing< /h2>

“Last week my computer started to slow down when I started playing games, which was solved after restarting… The slowness of the computer seems to be showing up affecting my whole computer: my fps goes into the single digits, the audio lags and my ping goes to ~1500….”


In fact, PC/Laptop running slow issue always occurs unexpectedly on Windows 10/8/7 when playing games, watching videos, launching programs, etc., even harder, < span rel="nofollow noopener noreferrer" target="_blank">computer freezes. How annoying can it be! Even some users reported us the slowness and freezing of the new computer or the slowness of the good one.

In short, “PC or laptop freezes” can appear in a number of ways, including:

  1. Programs are slow to open.
  2. Saving documents or converting files takes a lot of time
  3. Windows opens very slowly
  4. Graphics flicker, stutter and frame rates drop
  5. The operating system takes a long time to load or shut down
  6. Games or applications stutter, flicker and lag
  7. Internet connection download / upload speed drops
  8. File write error appears
  9. Windows error messages are displayed
  10. Printers or other peripherals attached to your computer are not working properly

In short, everything is getting slower and slower. Then you may ask: Why does my computer freeze when I play games, watch videos, launch applications, etc.? How do I stop my computer from slowing down? To search for the answers, go to the next part!

10 reasons for computer-slowness and how to fix this in windows 10/8/7

In general, slowness in a computer can be caused by either hardware or software. Here we will show you specific factors as well as how to fix computer has slowed down and keeps hanging issue or how to fix a slow computer

1. Poorly performing CPU

An old, overheated or not fast enough CPU can cause high CPU usage, which can lead to slowness or even total lag of your computer. Put simply, the better the CPU, the faster your PC will run.

To ensure your computer CPU is running at full performance, you need to run a CPU stress test (available free for Intel CPUs) and monitor your AMD CPU through AMD’s Performance Monitor to verify that your processor works as intended. If performance is poor, try replacing the old one.

2. Corrupt or insufficient memory (RAM)

Corrupted or insufficient memory can affect computer performance, the computer restarts randomly, cause a blue screen, etc. Also, if the RAM is broken or damaged, the system memory cannot handle processes and services as needed. As a result, your computer will slow down.

In this case, try to replace the damaged RAM or add more memory for your computer to improve PC slowness in Windows 10/8/7.

3. Old graphics card

If your computer freezes when playing games, one of the main reasons is the graphics card problem. The graphics card is the most important part for the gaming experience, because both the 3D graphics rendering and the calculation of the game physics are done on the graphics card.

When you play games on computers with the low-level graphics card, your computer is very likely to become slow. How to Improve PC Gaming Slowness in Windows 10/8/7? If the current one is old, upgrade now!

4. Windows runs on HDD

The speed of your hard drive determines the loading times. If you play games on computers that still use the traditional mechanical hard drive, your computers will freeze even when playing games that demand quite a bit of speed.

For this reason, we recommend upgrading HDD to SSD because Windows always runs slower on HDD than on SSD. If you configure SSD properly, it would dramatically speed up your game speed to solve the Computer is running slow and My computer freezes problems.

Upgrade HDD to SSD without reinstalling OS

But how do you upgrade? You can ask technicians for help, but it may cost extra money. Instead, you can use professional hard drive cloning software to upgrade HDD to SSD or migrate Windows 10/8/7 to SSD. MiniTool Partition Wizard Free Edition can help you complete hard drive upgrade and system migration easily.

The Migrate OS to SSD/HD feature allows you to move only OS to another disk or transfer the entire system disk. Also, the Copy Disk feature is designed to clone the entire system disk or data disk to another hard drive.

To upgrade hard drive to SSD for fast speed to fix Computer running slow Windows 10/8/7 issue, both can be used. Now free download MiniTool Partition Wizard and have a try.

Download for free

Here we take Copy Disk as an example.

Step 1: Run MiniTool Partition Wizard to the main interface. Then select the system disk and click Copy Disk in the left pane or select Copy.

from the context menu

Step 2: Choose the SSD you connected to your computer as the target disk to save the original contents.

Tip: Make sure the SSD has enough capacity to store the contents of partitions. Also, make sure you have backed up important files to the SSD because the cloning process will erase the contents of the target disk.

Step 3: Specify a disk cloning copy method and click Next to continue.

Tip: For SSD, we recommend selecting the Align partitions to 1 MB option to improve performance. In addition, if your SSD is larger than 2TB, you can use the Use the GUID partition table for the target disk option in a paid edition of MiniTool Partition Wizard because it is not supported by Free Edition.

Step 4: Learn how to boot your Windows from the target disk.

Step 5: Click the Apply button to make all changes effective.

If your games will be installed on the system partition and you just want to migrate OS to SSD, the Migrate OS to SSD / HD feature is available Available because transferring Windows will also migrate your games to SSD, which allows games to be played on SSD without reinstallation.

Note: In addition, MiniTool ShadowMaker has the best

In addition, MiniTool ShadowMaker has the best Backup software , a feature called Clone Disk, which allows you to easily and effectively upgrade hard drive to SSD, thus fixing computer running slow Windows 10/8/7 issue.

< p>Are you interested? Just download the trial version of page and start disk cloning by following the instructions in Clone Hard Drive to SSD in Windows 10/8/7 follow.

After upgrading from HDD to SSD, you can replace HDD with SSD and boot Windows from SSD. Then the problem “Computer is running slow Windows 10/8/7” will not occur.

5. Hard drive is damaged

If something is wrong with your hard drive (especially the system disk), your computer can run very slowly, even freeze and not start. How to solve Slow computer issue?

In this case, you can check your hard drive to see if the Computer has slowed down and keeps hanging issue is caused by the logical or corrupt disk, and then fix the errors or bad blocks shield.

To do this, open command prompt and use chkdsk.exe to check for logical errors or physical damage. Type the commands one by one: chkdsk x: /f or chkdsk x: /r (x is the drive letter of the disk you want to check).

Furthermore, Partition Manager – MiniTool Partition Wizard can also help you check and fix file system errors and test the disk’s bad sectors. Note that this tool cannot repair the bad blocks, only check them if it finds them. And you can use chkdsk /r to protect them.

6. Operating system is not preserved or updated

If your operating system is not regularly maintained, properly configured, or updated, a number of programs and tools can become installed. As a result, your computer hangs suddenly, even if the computer is new or good.

How to improve PC slowness or fix a slow computer in Windows 10/8/7? Follow the methods below.

Way 1: Uninstall unused programs

When you buy a new computer, chances are it comes with a lot of programs preinstalled. Over time, old PCs can simply accumulate these. However, most of these applications are never used, and some may even be running in the background without you noticing.

Even if your computer has enough memory, running multiple programs at the same time can slow down the PC and lead to computer sluggishness.

Therefore it is necessary to close these programs one by one or open the task manager to see what is running and kill the processes from there.

Way 2: Clean temporary files

When you use Internet Explorer, all browsing history stays in the depths of your computer. In the same way, when installing some programs or running the operating system, some temporary files are created, which are stored in the Windows Temp folder.

To free up system disk space to improve computer slowness, you can use Disk Cleanupto delete these temporary files.

Step 1: Open Computer or This PC and right click on the system partition C to Properties to select.

Step 2: Under the General tab, click the Clean button.

Step 3: Scroll down the Files to delete list and then select Temporary Files.

Step 4: Click OK and confirm the deletion by clicking the buttonDelete FilesClick.

By doing this, you can free up some disk space and fix My computer freezes while playing games to some extent.

Way 3: Optimize and Defrag Drive Regularly

Basically, this is a way to optimize the efficiency of your hard drive. To do this, go to Computer or This PC, right click on drive C to choose Properties function . Then, under the Tools tab, select Optimize to optimize your computer’s drive to run more efficiently

Way 4: Update the operating system regularly

System update can be helpful to solve some problems like Computer has become slow Windows 10/8/7. Therefore, you should update the operating system regularly.

Tip: Before updating, it is recommended to

Before updating, it is recommended to install OS or back up disk data with MiniTool ShadowMaker to avoid system crash after update.

7. Outdated Drivers

When the drivers are outdated, hardware or software problems often occur on the computer running Windows 10/8/7. Most often, such problems lead to the slowness of the computer. In most cases you need to update drivers to reduce computer slowness.

8. Internet connection problem

The internet is becoming more and more important. However, there are always weak signals, unstable lines, gateway or disconnection problems, low download speed, which can cause computer lagging.

This mainly appears when your operating system is trying to update or send data in the data center and installed software is downloading or uploading data in the background.

In this case, you can use the WindowsSystem Monitor (performance monitor), to get information about CPU, RAM and network problems. To do this, just type Performance Monitor/System Monitor in the Windows 10 Cortana search box and click the result.

9. Your PC is infected with viruses

The computer can easily get infected with the virus even if you have installed antivirus program in Windows 10/8/7. Nowadays virus and spyware or malware are a big cause of PC computer problems including computer slowness.

How to fix a slow computer or a lagging PC? Now run the antivirus program to completely scan your computer and remove the viruses. Then check if your computer is still very slow.

In addition, incorrectly configured or low-quality firewalls can cause the computer to hang as well. If you suspect a security program is causing the computer’s slowness, try temporarily turning off the firewall or virus/malware scanners to see if the delay is still there.

Note: Don’t forget to turn on your firewall or antivirus software after testing.

10. Insufficient or faulty power supply

In many cases, the insufficient or faulty power supply can cause your computer to become very slow. Make sure there is enough power supply for the CPU or graphics card. To fix the problem, you can contact the manufacturer and ask for help.

“Why does my computer suddenly hang when I play games? This post shows 10 reasons and some information on how to fix computer running slow issue. Really helpful!”ClickClick to tweet

Actually, there are many other reasons for My computer hangs while playing games problem, including other peripherals malfunction, audio card problem, etc. Just try the solutions based on yours actual situations.


Is your computer suddenly stuck in Windows 10/8/7? Now try the above ways to solve the “Computer is running slow” and “My computer freezes while playing“. I hope this post could help you get rid of such problems.

Should you have any problems, just leave us a message in the comments section or send an email to [email protected].

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