Full Fix: Hearthstone Issues in Windows 10, 7

Milan Stanojevic
by Milan Stanojevic
Deputy Editor
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Hearthstone is currently one of the most popular trading card games on PC, but users report that they are having some issues with Hearthstone and Windows 10. Today we’re going to cover some of the most common issues and try to resolve them.

Users have reported that they are having issues with game lagging and black screen issues, so let’s see if we can fix these issues.

How To Resolve Hearthstone Problems in Windows 10

Hearthstone is a great game, but unfortunately, sometimes issues with it can occur. Speaking of problems, here are some common Hearthstone issues that users reported:

  • Hearthstone not working on PC – If Hearthstone isn’t working on your PC, the most likely cause is your drivers. Simply update your display drivers to the latest version and check if that solves the problem.
  • Hearthstone connection, lag issues, latency issues PC – This issue can be caused by your DNS, but you can fix it by switching to Google’s DNS. You can also try restarting your router.
  • Hearthstone not loading – Sometimes the game might not load on your PC at all. This is usually caused by your antivirus, so be sure to add Hearthstone to the list of exceptions.
  • Hearthstone fps, freezing issues – If the game is freezing, the issue might be the process priority or affinity. However, you can fix this issue right from Task Manager.
  • Hearthstone startup issues, launch problems – Sometimes the game might not launch at all. If this happens, make sure that you’re using a dedicated GPU. In fact, you might have to disable built-in GPU from BIOS in order to fix this issue.

Solution 1 – Check your antivirus

Hearthstone lag issues

If you’re having Hearthstone issues on your PC, it’s possible that your antivirus is the cause. Sometimes a third-party antivirus can interfere with your system, and that will cause this and many other errors to occur.

To fix the problem, make sure that Hearthstone is added to the list of exceptions in your antivirus and firewall. If the problem is still there, it’s advised that you disable certain antivirus features and check if that helps. In some cases, you might even have to disable your antivirus altogether.

If disabling the antivirus doesn’t help, your next step would be to uninstall your antivirus. Several users reported that removing their antivirus solved the issue, so be sure to try that. A couple of users reported that McAfee caused this problem, but other antivirus tools can cause it as well. Once the antivirus is removed, check if the problem is still there.

If removing the antivirus solves the problem, you should consider switching to a different antivirus solution. Antivirus tools such as Bitdefender have a Gaming Mode feature that ensures that your antivirus doesn’t interfere with your gaming sessions in any way, so if you’re a gamer, Bitdefender will be perfect for you.

Solution 2 – Keep your display drivers up to date

Many users have reported stuttering issues on Windows 10, and it has been reported that updating your display drivers to the latest version fixes these issues. It has been confirmed by Nvidia users that latest drivers are fixing the stuttering problems, but if you’re an AMD user it won’t hurt to update your drivers as well.

We recommend TweakBit Driver Updater to automatically download all outdated drivers on your PC.

Solution 3 – Add Hearthstone to Windows Defender Exclusions list

Sometimes Windows Defender can cause stuttering issues so it’s recommended that you add Hearthstone to the Exclusions list in Windows Defender.

To do that follow these instructions:

  1. Open the Settings app. You can do that quickly by pressing Windows Key + I.
  2. Go to Update & Security section.
    Hearthstone not loading
  3. Select Windows Defender from the menu on the left. Choose Open Windows Defender Security Center from the right pane.
    Hearthstone freezing issues
  4. Go to the Virus & threat protection.
    Hearthstone launch problems
  5. Now navigate to Virus & threat protection settings.
    Hearthstone not working on PC
  6. Select Add or remove exclusions.
    Hearthstone latency issues PC
  7. Click Add an exclusion, select Folder and choose Hearthstone’s directory.
    Hearthstone not loading

Solution 4 – Delete Hearthstone folder from AppData

Some users say that removing or just moving Hearthstone folder from App Data fixes the stuttering problem. To move Hearthstone folder you need to do the following:

  1. Press Windows Key + R and enter %localappdata%. Now press Enter or click OK.
    Hearthstone not loading
  2. Go to the Blizzard\Hearthstone directory.
  3. Delete the Hearthstone folder, or just move it to your Desktop or any other location.
  4. Start the game now and see if the stuttering issues persist.

After doing that, the cache file will be recreated and the issue with Hearthstone should be completely resolved.

Solution 5 – Disable Switchable graphics from BIOS

The last thing we’re going to try is to disable switchable graphics from BIOS. Here’s what you need to do:

  1. When your computer boots keep pressing Delete, F2 or F12 to enter BIOS.
  2. When you enter BIOS you need to locate Switchable graphics and turn it off.
  3. Make sure that you save changes.

We have to mention that this solution only works if you have both integrated and dedicated graphics card.

Solution 6 – Restart your router

According to users, sometimes Hearthstone issues can occur due to issues with your network. There might be a glitch with your network that can cause this issue to appear, and in order to fix this problem, you need to restart your router/modem. This is quite simple to do, and you can do it by following these steps:

  1. Go to your router/modem and press the Power button on it to turn it off.
  2. Once the device is off, wait for about 30 seconds.
  3. Now press the Power button again to turn it on.
  4. Wait for about 30 seconds or more for the router/modem to boot completely.

Once the device boots, check if the problem with Hearthstone is still there.

Solution 7 – Use Google DNS

According to users, sometimes your DNS can cause Hearthstone issues to appear. To fix the problem, it’s required that you switch to Google’s DNS and check if that helps. This is rather simple to do, and you can do it by following these steps:

  1. Click the network icon on your Taskbar and select your network.
    Hearthstone fps issues
  2. Select Change adapter options.
    Hearthstone startup issues
  3. You should now see the list of all network connections on your PC. Right-click your network connection and choose Properties.
    Hearthstone not working on PC
  4. Select Internet Protocol Version 4 (TCP/IPv4) and click the Properties button.
    Hearthstone not working on PC
  5. Select Use the following DNS server addresses. Be sure to enter as the Preferred and as the Alternate DNS server. Click OK to save changes.
    Hearthstone connection issues PC

After switching to the Google’s DNS, the issue should be resolved. Keep in mind that switch to Google’s DNS can cause some latency issues, but that won’t be a problem for a game such as Hearthstone.

Solution 8 – Change Hearthstone’s priority and affinity

Sometimes Hearthstone issues such as freezing or crashing can occur due to issues with your CPU. This isn’t usually a hardware issue, but sometimes the game might not be fully optimized. This was the case for many AMD APU users, but there’s a way to temporarily fix this issue.

According to users, you just have to change the affinity and priority of the Hearthstone process. This is quite simple to do, and you can do it by following these steps:

  1. Start Hearthstone.
  2. Now press Alt + Tab to minimize the game.
  3. After doing that, open Task Manager. You can do it instantly by using Ctrl + Shift + Esc shortcut.
  4. When Task Manager opens, go to Details tab and locate Hearthstone on the list.
  5. Right-click Hearthstone and choose Set priority. Now set any other value higher than normal. Some users are even suggesting to use Realtime value, but that might cause issues on your PC.
    Hearthstone fps issues
  6. Right-click Hearthstone process again and choose Set affinity.
    Hearthstone startup issues
  7. Make sure that only CPU 0 is checked and disable all the rest. Now click OK.
    Hearthstone not working on PC

After doing that, switch back to the game and check if everything works. Keep in mind that this is just a workaround, so you’ll have to repeat it every time you want to start Hearthstone.

Hearthstone is a great, and widely-popular game, so possible issues could spoil the experience of users. However, we hope this article helped you to solve all the problems you had with Hearthstone, and that you’re able to play the game without any interruptions now. If you have any comments, or questions, just reach for the comments section, below.

Editor’s Note: This post was originally published in September 2018 and has been since revamped and updated in March 2020 for freshness, accuracy, and comprehensiveness.

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