How to Fix the “Internal error: CallSpawnServer: Unexpected response $0” in GOG Galaxy

The “Internal error: CallSpawnServer: Unexpected response $0” occurs on Windows when one program tries to communicate with another program but fails to do so. Many GOG Galaxy players are experiencing the same error while trying to launch or play the game.

What is the “Internal error: CallSpawnServer: Unexpected response $0” Error

When the CallSpawnServer process, responsible for launching new processes on Windows, delivers an unexpected response, then you get the system greets you with the Internal error: CallSpawnServer: Unexpected response $0 error message.

If you are also dealing with this issue then this fixing guide might be helpful in providing you with the solutions.

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How to Fix the “Internal error: CallSpawnServer: Unexpected response $0” Error

Here’s a list of tips and solutions to fix the “Internal error: CallSpawnServer: Unexpected response $0” error on your Windows PC.

1. Restart the PC

A lot of times, the error occurs just because of some conflict between the background Windows processes. Such a situation can be tackled by simply restarting your Windows system.

Open the Start Menu on your PC by pressing the Windows key on your keyboard, click on the power button in the bottom-right corner, and select Restart.

restart windows 11

2. Check your Internet Connection

Many apps and games are required to have a stable and reliable internet connection. Hence it is really important to cross-check if your system is having a proper internet connection.

For surety, you should consider restarting your Router, Modem and re-plug the internet cable into your PC. If you are using a wireless connection, consider turning on and then off the Airplane Mode.

3. Check GOG Servers

You should also check the status of the GOG Servers. It is quite possible that due to the servers being on maintenance or facing downtime due to some reason, you are getting the “Internal error: CallSpawnServer: Unexpected response $0” error.

Check the GOGcom Twitter handle and if there is anything wrong going with their servers you should be able to see some related tweets. You can just wait in this case for the servers to get back up and running.

4. Run DISM and SFC Scans

Corrupted or missing system files and processes can also lead to this error. Hence you should consider running the DISM and SCF scans on your PC.

Follow the below steps to run the SFC and DISM Scans.

1. Search for Command Prompt in the Windows search bar and open the same as administrator.

run cmd as administrator
run cmd as administrator

2. In the Command prompt window, execute the following command to run the SFC (System File Check) scan:

sfc /scannow
sfc scannow
sfc scannow

3. Let the SFC Scan complete and after that, run the following command to run the DISM scan:

DISM.exe /Online /Cleanup-Image /Restorehealth
DISM Scan to repair the Component Store
DISM Scan to repair the Component Store

4. Lastly, restart your PC and check if the issue is now resolved.

5. Run GOG Galaxy as administrator

If the GOG Game is constantly delivering the “Internal error: CallSpawnServer: Unexpected response $0” error upon launching it, it is highly advised to try launching the game with administrative privileges.

To do so, simply, right-click on the GOG Galaxy’s icon and select the Run as administrator option.

6. Update Windows and Drivers

If your PC is loaded with a lot of pending Windows updates then it is possible that the outdated versions of Windows and its drivers are causing the issue. Hence you should consider checking for available updates and installing them if there are any available.

Check and Install Windows Updates

1. Open the Windows Settings by pressing Win + I on your keyboard and go to the Windows Update option from the left pane.

2. Now on the right, click on the Check for updates button and install the update if any are found.

update windows 11

Check and Install Driver Updates (Optional Updates)

Though these updates are called optional updates, not installing these updates for a long time may pose issues on your PC. Follow the below steps to check and install the Optional Windows Updates.

1. Open the Windows Settings (Win + I) and go to Windows Update from the left pane.

2. Next, on the right pane click on the Advanced Options tile.

windows update advanced options
windows update advanced options

3. On the next screen, click on the Optional Updates option.

windows 11 optional updates
Windows 11 optional updates

4. Finally, checkmark all the available optional updates and click on the Download & Install button.

download install optional updates
download and install optional updates

7. Perform Windows Security Scan

The presence of malware and viruses on the system can give birth to issues you can’t imagine. And the “Internal error: CallSpawnServer: Unexpected response $0” error is no exception.

You should consider running a Full Scan if your PC using Windows Security. Follow the below steps to do so.

1. Search for Virus & threat protection in the Windows Search bar and open the same from the search appeared search results.

001 virus and threat protection

2. Once the Virus & threat protection window is open, click on the blue Scan options link located under the Quick Scan button.

Scan options

3. On the next screen, set the radio button to the Full Scan option and begin the scan by clicking on the Scan now button.

full scan scan now
full scan Windows 11

Pro Tip: You can also use a dedicated tool called Restoro to fix this issue.

Let the scan finish, and delete the suspicious files or third-party programs containing malware. Afterward, restart your device and check if the GOG Galaxy is now running fine.

8. Update C++ Redistributable & .NET Framework

A lot of games and application work with the framework dependencies of C# and Visual Basic. And hence your PC needs to have the updated C++ Redistributable and .NET Framework packages.

Update C++ Redistributable

To update Microsoft Visual C++ Redistributable, visit the official C++ Redistributable page on your system and download the appropriate VC++ version for your system and install it. Lastly, restart your PC and check the status of your game by launching the same.

Update .NET Framework

To update the .NET Framework, visit the .NET Framework download page and download the latest version of the Runtime version of .NET Framework.

Once downloaded, install it and restart your PC.

9. Clean Boot your Windows PC

The interference of the 3rd-party programs and processes can also cause the GOG Galaxy or any other program to deliver the “Internal error: CallSpawnServer: Unexpected response $0” error.

Performing a Clean Boot of your Windows PC is a really effective way to eliminate such conflicts in the apps, programs, and processes. Hence Clean boot your Windows PC and then try running the concerned game/app.

If it runs properly in a Clean Boot state, that means there is some background conflict happening between the apps. act accordingly and resolve the issue.

10. Reinstall GOG Galaxy

If you are still encountering the “Internal error: CallSpawnServer: Unexpected response $0” error on your PC while opening GOG, you should consider reinstalling it.

It is possible that the last installation of GOG was not done properly or its files might get corrupted or missing later due to some reason. Reinstalling the GOG Galaxy app on your Windows PC should do the trick

And here comes the end of this fixing guide. I am hoping that this guide would have helped you resolve your “Internal error: CallSpawnServer: Unexpected response $0” error on your PC.

If you have some questions or suggestions, please let us know in the comments below.

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Posted by
Bhanu Pratap

Hi! I am Bhanu Pratap, co-founder of Yorker Media Group. A die-heart fan of tech and keeps track of every little happening of the same. When not writing, I usually keep myself busy on YouTube making and exploring new and awesome tech content.

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