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Engine error: Could not load library client is an annoying message that can affect Steam and your favorite games.In order to fix this problem you should temporarily disable your antivirus.Move your Steam installation to another location by following our guide below.You can also repair the Steam client service from the Command Prompt.

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If you’re encountering Engine Error: Could Not Load Library Client message on your PC, the cause might be related to your antivirus. To fix this issue, be sure that the Steam directory is added to the exclusion list in your antivirus.

If that doesn’t help, you might have to temporarily disable your antivirus and check if that solves the problem. In case the issue still persists, you might have to uninstall your antivirus.

To do that, the best way is to use a dedicated uninstaller. Many antivirus companies offer uninstallers for their software, so be sure to download one for your antivirus.

Just to be on the safe side, it’s recommended to use a dedicated uninstaller, so you ensure that all files and registry entries related to your antivirus are removed. We recommend you to try IOBit Uninstaller.

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Solution 3 – Restart Steam

If “Engine error: Could not load library client” error is giving you trouble, try restarting Steam. Make sure that you turn off Steam completely, you can even check with Task Manager if the Steam is running. After turning off Steam completely, start it once again to see if the problem has been resolved.

Solution 4 – Move your Steam installation

If the problem persists, and Steam is installed to a location that contains letters or symbols that are not in the English alphabet, you might have to move your Steam installation. Don’t worry, your Steam games will be saved, and if everything goes well you won’t have to download them again.

Before we start moving your Steam installation, make sure that you know your username and password, because you’ll need it to access Steam later.

Make sure that Steam isn’t running.Go to the Steam installation directory. By default it should be:C:Program FilesSteamHowever, this location might be different on your computer.Delete all the files and folders except for the SteamApps folder (this is where your downloaded games are stored) and Steam.exe.Move these two files to another location.Launch Steam.exe from a new location, and log in to your account.

Steam will now update, and you’ll be able to play your favorite games again. In addition, it wouldn’t be a bad idea to verify game cache files.If you have any issues after moving your Steam games to a new directory you should delete Steam data from your registry. To do that follow these instructions:

Go to your Steam directory and delete all files from it, except for theSteamApps folder. It’s advised that you move the SteamApps folder to a different location because you’ll need it later.When Registry Editor opens navigate to the following key in the left pane:HKEY_LOCAL_MACHINESOFTWAREValve (if you use a 32-bit version of Windows 10)Close Registry Editor.Now go to Steam’s website and download the new Steam client.Install it, and move your SteamApps folder to it.After doing that, log in to Steam. It’s also advised that you verify the game cache of the games you want to run.

Solution 5 – Repair the Steam Client Service

Make sure that Steam isn’t running.When Command Prompt starts paste the following:Remember to change the location between the quotes, so that it matches your Steam installation directory.Press Enter to run it. This might take a while, but after the process is completed, you should get a message saying “Steam Client Service repair completed”.After the process is completed, close Command Prompt and restart your computer.

Solution 6 – Verify the game cache

To verify the game cache of the game that gives you Engine error: Could not load library client erroryou need to do the following:

Open Steam.This process might take a while, so be patient.After the verification process has been completed, try running the game again.

Solution 7 – Delete bin folder

If a certain game is giving you this error, you might want to delete its bin folder. Sometimes some .dll files can move to wrong locations, so let’s try to delete the bin folder. We have to warn you, sometimes by deleting a game folder you can cause damage to your game, and if that happens you might have to download the game again.

In our example use used Garry’s mod, but this could be any other game that isn’t working properly. To delete bin folder follow these instructions:

Navigate to the following folder:C:Program FilesSteamSteamAppsyour_usernamegarrysmodFind the bin folder and delete it. After deleting the folder, try running the game again.If the problem persists go to the following folder:C:Program FilesSteamSteamAppsyour_usernamegarrysmodgarrysmodFind the bin folder and delete itAfter you have deletedthe bin folder, try to start the game again.If the problem still isn’t fixed go to:C:Program FilesSteamSteamAppsyour_usernamegarrysmodand delete all folders and files except the garrysmod folder.Try to start the game again.

Solution 8 – Change the gameinfo.txt file

This solution applies to game mods, so if you’re having any problems with mods, try the following steps:

Go to mod folder and open gameinfo.txt file.Find the following line:Game hl2and change it to:Game sourcetestSave the changes and try running the mod again.

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As you can see, Engine error: Could not load library client error can create some trouble, but in most cases, you can fix it by downloading Download Microsoft Visual C++ 2010 Service Pack 1 Redistributable files.