Top 3 Solutions to Steam_api64.dll Missing Error

Some Steam users report that when they try to launch a game on Steam, an error message about steam_api64.dll missing pops up. It says:

• The program can’t start because steam_api64.dll is missing from your computer. Try reinstalling the program to fix this problem.
• The code execution cannot proceed because steam_api64.dll was not found.

If you receive the similar error, you can try the following methods to fix the problem.

Solution 1: Verify Your Game Files in Steam

When you receive the error message “The program can’t start because steam_api64.dll is missing from your computer”, you can use the Steam feature “verify integrity of game files” to restore missing steam_api64.dll file.

Step 1: Click LIBRARY in Steam.

Step 2: Right-click the game which gives the error message in your list of games, and then click Properties.

Step 3: Under LOCAL FILES tab, click VERIFY INTEGRITY OF GAME FILES.

Step 4: Wait for a while. Once the process is complete, click CLOSE.

Then you can launch the game again and check if steam_api64.dll missing error has been solved.

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Solution 2: Copy the File from Another Computer

Alternatively, to fix the error that steam_api64.dll was not found or missing, you can copy the file from another computer. Pay attention that the computer needs to meet the following requirements:

• Running the same operating system (Windows version) as your computer does.
• With the same game installed.

To check the version of Windows on a computer, you can go to Control Panel > System and Security > System. Make sure the two computers are the same in Windows edition and System type.

Then you can copy steam_api64.dll file from the other computer. Here is how to do it.

Step 1: On the other computer, press Win + E to open File Explorer.

Step 2: Navigate to the Steam folder. By default, it is in C:Program FilesSteam.

Step 3: Type steam_api64.dll in the search box to find the file quickly.

Step 4: Copy the steam_api64.dll file and paste it to a USB flash drive.

Step 5: Connect the USB to your computer and then copy and paste the steam_api64.dll file to the same location where you copy the file.

Solution 3: Reinstall the Game

If you don’t want to copy file from another computer, you can try reinstalling your game to fix steam_api64.dll missing error, just as the error shows.

Step 1: In Steam, click LIBRARY.

Step 2: Right-click your game and choose Uninstall.

Step 3: Click Delete to confirm the operation when a window pops up.

Step 4: Click STORE and search the game you deleted just now.

Step 5: Click Play now. Then follow the onscreen instructions to download and install the game.

After the game is installed, you can launch it and check if the error steam_api64.dll missing disappears.

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