Steam kan niet worden geopend: hoe te repareren dat Steam niet wordt geopend (18 mogelijke oplossingen)

Steam is the most popular gaming platform in the world. It provides access to countless free and paid games, giving users the possibility to play everything in a user-friendly interface.

Unfortunately, Steam won’t open every time you try to launch it, preventing you from getting back to your favorite games. It’s an annoying issue that troubles many gamers.

But rest assured, today you’ll find a workaround for your problem, no matter what the root cause of the problem might be, so read on to learn how to fix Steam not opening.

How do I fix Steam not opening on my PC?

Before starting to make changes to your computer, it’s a good idea to set up a system restore point. In case anything bad happens, you can use the Recovery option to restore Windows to a previous state.

You should also consider performing a full hard disk backup if you have enough storage space available. It’s more reliable since System Restore doesn’t always work as expected.

1. End all Steam processes from Task Manager

If you recently launched Steam, exited, and couldn’t open it anymore, it might be due to too many processes opened in the background. However, you should be able to quickly fix this problem by ending all associated processes from Task Manager.

1. Right-click the Windows taskbar and open Task Manager
2. Locate all Steam entries, select each one, and click End task (starting with Steam Client Bootstrapper)
3. Restart your computer
4. Try to launch Steam now

2. Repair the Steam service

If Steam is not opening on your computer due to service failure, you can fix it with the repair tool.

1. Log in to Windows 10 as the administrator
2. Make sure to end all Steam processes (see the previous solution)
3. Press Win key + R and type "C:\Program Files (x86)\Steam\bin\SteamService.exe" /repair
4. If Steam is in another location than default, replace it accordingly. Press Enter
5. Try to open Steam now

3. Free up disk space

Check if your computer is running low on disk space. Just like other software applications, Steam requires free disk space to be able to function correctly, especially since it’s an Internet-enabled tool.

The simplest way to free up disk space on Windows 10 without installing third-party cleaners is by turning to the Disk Cleanup tool.

1. Log in to Windows 10 as the administrator
2. Check the Downloads folder and Recycle Bin to save or restore any important files
3. If Steam is installed on the C: drive, right-click C: and select Properties
4. In the General tab, click Disk Cleanup
5. Select all items from the list and click Clean up system files
6. Once Windows finishes the scan, select all items again, click OK and Delete Files to confirm
7. It might take a while. Once the task is complete, restart your PC and try to launch Steam

4. Delete the Steam appcache folder

The appcache folder contains information about the application and game files. Normally, it shouldn’t interfere with the Steam core components.

Still, you can delete it to give the gaming client a hard refresh. Don’t worry since the Steam will automatically rebuild the appcache folder with everything it needs.

1. Go to C:\Program Files (x86)\Steam\. If you installed Steam somewhere else, visit that location instead
2. Delete the appcache folder
3. Restart your PC and try to launch Steam

5. Reinstall the Steam client

If the software application isn’t working normally, it could be the reason why Steam won’t open on your computer. You can fix this problem by uninstalling Steam and then downloading and installing the latest version. Don’t worry since your games will remain installed on your PC.

Here’s how to uninstall Steam

1. Right-click the Windows 10 Start button and select Apps and Features
2. Click Search this list and type steam
3. Select Steam, click Uninstall, and proceed with the on-screen instructions

You can download Steam from the official website and go through the setup operation again. It also ensures that you will be running the latest available updates.

6. Clear the Steam download cache

If you can open the Steam desktop client but can’t download or launch any games, try this:

1. Launch Steam, open the Steam menu, and go to Settings
2. Select Downloads, click Clear download cache, and Yes to confirm
3. Restart your PC and launch Steam

7. Unplug all extra external devices

Peripheral devices like USB flash drives, memory cards, and external hard disks can cause application functionality issues, even to Steam.

Try to pinpoint the time when you started experiencing  issues with the Steam launcher. If you plugged a new device into your PC around the same time, that device could be your culprit (or maybe you have faulty USB ports).

Koppel gewoon alles los wat je niet nodig hebt, start je computer opnieuw op en probeer de Steam-app te openen. Probeer in het geval van vereiste apparaten deze op verschillende USB-poorten aan te sluiten.

8. Reset je internetverbinding

Zelfs als je geen actieve internetverbinding hebt, zou je nog steeds in staat moeten zijn om de Steam-app te starten en over te schakelen naar de offline modus om games te spelen. Bepaalde instellingen voor netwerkverbinding kunnen echter van invloed zijn op de hele client.

Ga als volgt te werk om de probleemoplosser voor internet uit te voeren:

1. Klik met de rechtermuisknop op het menu Start van Windows 10 en selecteer Instellingen
2. Klik op Update en beveiliging
3. Selecteer Problemen oplossen , klik op Internet-verbindingen en volg de instructies op het scherm

U kunt ook uw DNS-servers leegmaken:

1. Press Win key + R, type cmd, then press Ctrl + Shift + Enter to launch Command Prompt with admin rights
2. Type the following lines (in this order) and make sure to press Enter between each line
   1. ipconfig /flushdns
   2. ipconfig /registerdns
   3. ipconfig /release
   4. ipconfig /renew
   5. netsh winsock reset
3. Restart your PC and try to launch Steam in online mode

9. Add an exception for Steam in your firewall

If you recently made changes to your firewall settings, you might have accidentally disabled Internet access for Steam.

To test this theory, you can temporarily disable your firewall:

1. Press the Win key, type firewall, and open Firewall & network protection
2. Click Domain network
3. Turn off Windows Defender Firewall and click Yes if prompted by User Account Control (UAC)
4. Try to open Steam in online mode

If everything is working fine know, then you know for sure that it’s the firewall’s fault. However, it’s dangerous to keep it disabled, so go back to Firewall & network protection, click Restore settings and Yes if prompted by UAC.

Here’s how to add an exception for Steam in your firewall:

1. Go to Firewall & network protection and click Allow an app through firewall
2. Click Change settings (you need admin rights)
3. Click Allow another app and use the file browser to locate Steam
4. Check the Private and Public boxes next to Steam, then click OK
5. Launch Steam in online mode

10. Get the latest Windows updates

It’s critical to keep Windows updated to the latest version. Otherwise, your Steam client might not launch if your operating system is obsolete and has missing features.

1. Press the Start button, type Check for updates, and press Enter
2. Wait until the search is complete. If there are any pending updates, click Download
3. Once all updates have been downloaded and installed, reboot your PC and try to launch Steam

11. Remove recent Windows updates

On the other hand, if you started having trouble with Steam after a recent Windows update, just remove it from your PC. It’s well known that some Windows updates are poorly designed and have a negative impact on your computer.

1. Press Win key + R, type control panel, and press Enter
2. Select Programs and Features
3. Click View installed updates
4. Click the Installed On column to sort the Windows updates by time (newest first)
5. Double-click the first entry in the list and proceed with its uninstall
6. Restart your computer and try to open Steam

12. Update your device drivers

Het is een probleem dat lijkt op Windows-updates: als uw apparaatstuurprogramma's oud en verouderd zijn, is het mogelijk dat Steam niet op uw pc wordt geopend. Gelukkig is het geen hardwareprobleem, dus je hoeft geen geld uit te geven aan nieuwe apparatuur.

Zorg er in plaats daarvan voor dat u al uw apparaatstuurprogramma's bijwerkt naar de nieuwste versie. Leg de nadruk op de GPU en netwerkstuurprogramma's, aangezien deze rechtstreeks verband houden met de Steam-desktopclient.

Ga als volgt te werk om uw stuurprogramma's handmatig bij te werken:

1. Klik met de rechtermuisknop op de Windows 10 Start- knop en ga naar Apparaatbeheer
2. Vouw het menu Beeldschermadapters uit , klik met de rechtermuisknop op uw GPU-interface en selecteer Stuurprogramma bijwerken
3. Klik op Automatisch zoeken naar bijgewerkte stuurprogrammasoftware

If Windows returns the The best drivers for your device are already installed message, click on Search for updated drivers on Windows Update.

However, if you already downloaded the latest Windows updates, you can skip this part. It’s possible to manually look up new driver versions on the official website, depending on your manufacturer.

It’s risky business, however, since you might accidentally install an incompatible device driver. In turn, this will likely cause Windows compatibility issues.

A safer option is to turn to a driver updating tool. It automatically detects your current and obsolete drivers, finds newer versions on the Internet, then quickly downloads and installs them. You just have to reboot your PC when it’s all over.

13. Uninstall recent software

Steam could be affected by programs you’ve recently installed on your computer. It doesn’t really matter if they’re legitimate or suspicious since software conflicts are unpredictable and usually unavoidable.

Examples include CCleaner, Sandboxie, Process Hacker, Steam idlers, DLL injectors, free antivirus tools, some web browsers, and anything that could affect Steam and Steam game files.

Try to determine when you noticed that Steam is not opening on your computer anymore. If you’ve installed something you shouldn’t have right around that time, then you just have to remove the guilty party.

Here’s how to uninstall recent programs:

1. Right-click the Windows 10 Start menu and go to Apps and Features
2. Set Sort by to Install date
3. Select the first app in the list, click Uninstall, and follow the on-screen instructions
4. Restart your computer and try to launch Steam now
5. If the issue persists, remove the next program on the Apps and Features list by taking into account the install date (newest first)

14. Synchronize your date and time settings

Certain software applications collect diagnostics to troubleshoot any issues you might be experiencing, including your system date and time. And Steam is one of them.

As such, if your Windows date and time settings aren’t correct, Steam might not be able to launch. But you can fix this easily.

1. Make sure you’re logged in as the administrator
2. Press Win key + R, type control panel, and press Enter
3. Zoek en klik op Datum en tijd
4. Klik op Tijdzone wijzigen
5. Stel uw juiste tijdzone in , schakel Klok automatisch aanpassen voor zomertijd in en druk op OK
6. Schakel over naar het tabblad Internettijd en klik op Instellingen wijzigen
7. Schakel Synchroniseren met een internettijdserver in , stel Server in op time.windows.com , klik op Nu bijwerken en druk op OK
8. Klik op Toepassen , verlaat dit venster en start uw pc opnieuw op
9. Probeer Steam te starten

15. Systeembestanden herstellen

If Windows has corrupt system files, it could be the reason why Steam won’t launch.
But you can troubleshoot this issue without installing any third-party software since Windows has a built-in tool for this purpose: System File Checker (SFC).

1. Press Win key + R, type cmd, then press Ctrl + Shift + Enter to launch Command Prompt with admin rights
2. Type sfc /scannow and press Enter
3. Wait until the scan is complete. Windows will repair any corrupt files
4. Reboot your computer and try to open Steam

16. Delete the Steam beta file

Hoewel de bèta-ontwikkelingsfase je toegang geeft tot aankomende functies, is het onstabiel en kan het ertoe leiden dat Steam niet meer goed werkt en zelfs wordt gestart. Als je in het verleden lid bent geworden van het Steam-bètaprogramma, moet je het volgende doen:

1. Gebruik je bestandsverkenner om naar C:\Program Files (x86)\Steam\package. Als je Steam op een andere locatie hebt geïnstalleerd, voer je die in plaats daarvan in
2. Zoek en het verwijderen van beta -bestand
3. Start je computer opnieuw op
4. Start Steam. Als het je gelukt is, open je het Steam- menu en ga je naar Instellingen
5. Klik in het gedeelte Account op Wijzigen naast Beta-deelname
6. Set Beta deelname aan NONE - Opt out van alle beta-programma's

17. Voer een schone start uit

You can perform a clean system boot to start Windows using only essential processes, services, and drivers while excluding everything else.

1. Click the Start menu, type System Configuration, and launch this app
2. Select the Services tab and deselect Hide all Microsoft services, then click Disable all
3. Head over to the Startup tab and click Open Task Manager
4. End all currently running tasks
5. Restart your computer and try to open Steam

18. Use the Recovery tool

If you created a system restore point before Steam started acting up, then you can revert Windows to that state.

Before doing so, though, you should back up any essential files to cloud or an external disk because they will no longer be on your computer. Don’t forget about your offline saved games.

1. Press Win key + R, type control panel, and press Enter
2. Select Recovery
3. Click Open System Restore
4. Pick a checkpoint, click Next, and follow the given instructions
5. Restart your machine and try to launch Steam

Conclusion

To recap, if Steam won’t open on your PC, you can try ending all its processes from Task Manager, repairing the Steam service using a simple command, and freeing up disk space on your hard disk.

It’s also a good idea to delete the Steam appcache folder, reinstall Steam, clear the Steam download cache, and remove any unnecessary peripheral devices.

If that doesn’t work either, you can reset your Internet connection, add an exception for Steam in the firewall, update Windows and drivers, as well as uninstall any recent software or faulty Windows updates.

Additionally, you can adjust your time and date settings, repair system files using SFC, delete the Steam beta file, run a clean boot, and use the Windows Recovery tool.

Did any of these solutions did the trick for you? Let us know in the comment section below.