Telegram is a popular and free messaging app with an emphasis on speed, deliverability, and security. It’s superfast, simple, free, and can be used seamlessly on all devices, including phones, tablets, or computers. However, ‘Telegram desktop error cannot open’ is an annoying issue that its users often experience.

If you cannot open Telegram Desktop on your Windows PC, this could be due to slow internet speed or the firewall blocking the app. To get Telegram Desktop working again, reboot your router or add the app to the Windows Firewall whitelist.

This blog will show you why you are facing the error on the Telegram Desktop app and how to fix it to get back to utilizing all its features again.

Why Telegram desktop is not opening?

telegram desktop error message

Below, we’ve listed some most common reasons why your Telegram desktop app is not opening:

  • Your Telegram is experiencing a weak network connection.
  • Telegram desktop is not updated.
  • Telegram is facing some OS restrictions.
  • A software glitch on the app might be causing the error.
  • Background data access is not given.
  • Your IP address is blocked.
  • Other high graphic apps are running on your desktop.

What to do if Telegram is not opening?

background app permissions

Getting the Telegram desktop error cannot open? Try the following troubleshooting methods to fix the issue in no time.

Check internet connection

Telegrams run on an active network connection. Therefore, a weak internet connection can cause the Telegram desktop not to open. To check your internet connection:

  • Check your internet service for outages.
  • Restart or Power cycle your modem/router.
  • Run other apps to check the internet. 

Restart Telegram desktop

There might be some minor glitches causing the Telegram desktop not to open. Force closing the app can resolve the issue.

To do so;

  • Press the Ctrl+Alt+Delete keys on your keyboard to access Windows Task Manager.
  • Next, find Telegram and right-click on it.
  • Now, click on the End Task option from the list of options.

Launch your Telegram app once you end the task and see if it starts working.

Note: You can also access the Task Manager from your Start Menu. In the search bar, enter Task and click on the Task Manager option.

Update Telegram desktop app

Telegram updates its software regularly to remove any bugs that might result in errors. So, always keep your Telegram Desktop app updated. To do this:

  • From your Desktop, open Microsoft Store.
  • Click on the Library option at the bottom left side.
  • This will display the Updates & Downloads.
  • From the list, find the Telegram app and click on the Update option.
  • After the update is complete, try opening the Telegram app to check if the error is fixed.

Run Telegram desktop app as administrator

If Telegram experiences some OS restriction, it can stop working and won’t open. Run it as administrator to fix the error.

To do so:

  • From your desktop, right-click on the Telegram icon.
  • Next, from the menu, click on the Run as Administrator option.
  • Then from the pop-up screen, click on the Yes option to confirm the action.
  • Go back to your desktop, launch Telegram, and check if the error is resolved.

Add Telegram to the whitelist in the firewall

To protect your PC from malfunction and viruses, the Windows firewall sometimes blocks certain apps from opening. To remove Telegram from the blocklist:

  • Click on the Start option, search for the Control Panel, and open it.
  • Now, select the Window Defender Firewall option.
  • Navigate to the Allow an app or feature through Windows Defender Firewall.
  • Tick both the Public and Private boxes next to the Telegram App.
  • Now click on the Remove option and verify that the error is fixed.

Check system resources

When you are running multiple desktop apps simultaneously, your PC runs out of RAM data, which can result in your Telegram not opening error. 

To resolve the issue:

  • Navigate to the Windows 10 Resource Manager.
  • If RAM data is low, head over to the Task Manager.
  • Now end unnecessary tasks.
  • Finally, try opening the Telegram desktop app to check it can open.

Allow background data permission

To save power, Windows stops certain apps from running in the background. If this is the case with Telegram Desktop, change your app’s background data permissions settings to Always in the following way.

  • From your PC, open Windows Settings and click on Apps Menu. 
  • Next, click on the Apps & Features. 
  • Find the Telegram app and click on the three dots next to it. 
  • From the drop-down menu, click on Advanced Options. 
  • Under the Background apps permissions option, click on the Always option. 
  • Now that the Telegram app has access to background data, try opening it to verify the fix. 

Uninstall and Reinstall the Telegram

Another reason why the Telegram desktop won’t open is due to the corrupted files or bugs from your last installation. To fix the error, reinstall the app by following the steps below:

  • Navigate to the Control Panel from your PC desktop and click on the Programs and Features option.
  • Scroll down and locate the Telegram app, and right-click on it. 
  • Next, click on the Uninstall option. 
  • Once the Telegram app is uninstalled, open your browser and download the app from the Official Website

How to repair Telegram Desktop?

repair telegram desktop client

To fix corrupted data or any glitches causing the Telegram Desktop not to open, you can also repair the app. 

To do so;

  • Navigate to the Windows Settings from your desktop. 
  • Next, click on the Apps option. 
  • Scroll down and find the Telegram app under Apps & Features. 
  • Click on the App and then click on the Advanced Options. 
  • Now, scroll down and click on the Repair option under the Reset Header. 
  • Once the repair process is complete, try opening Telegram to verify that the error is rectified. 

Note: You can also navigate to the Windows Settings by pressing the Windows+I key on your keyboard. 

Conclusion

We hope that the troubleshooting steps in this guide help you fix the Telegram desktop not opening error. Now you can enjoy using the app for messaging without any trouble. However, if the issue persists, try contacting Telegram Support.