Home » How-To » Gaming » How to Fix Undecember Not Launching, Crashing, or Freezing

How to Fix Undecember Not Launching, Crashing, or Freezing

To fix Undecember not launching, crashing, or freezing, you can try to update your graphics card, run the game as an administrator, or allow it in your antivirus.

You can also try disabling overlays/conflicting programs, repairing/verifying the game files, or updating Windows.

Undecember is an action role-playing game where players can combine a variety of skills and link runes.

Become a Rune Hunter and defeat powerful enemies to get new items.

Unlike other conventional growth systems, you can complete your own unique builds.

In this guide, you’ll learn how to fix Undecember not launching, crashing, freezing, or having a white/black screen.

Fix 1: Update your graphics card

Fix 2: Run Undecember as an administrator

  1. Go to your Steam library.
  2. Right-click Undecember > Properties > Local Files > Browse.
  3. Right-click the Undecember app > Run as administrator.

Fix 3: Allow Undecember in your antivirus

  • Open the Windows settings > Privacy & Security > Windows Security > Virus & threat protection > Manage ransomware protection > Allow an app through Controlled folder access > Add an allowed app > Browse all apps > select the Undecember app > Open.
  • Open the Control Panel > System and Security > Windows Defender Firewall > Allow an app or feature through Windows Defender Firewall > Change settings > Allow another app… > Browse… > select the Undecember App > Add.
  • Turn off Real-time protection: Open the Windows settings > Privacy & Security > Windows Security > Virus & threat protection > Manage settings > Real-time protection > Off.

Fix 4: Disable overlays/conflicting programs

  • Go to your Steam library > right-click Undecember > Properties > Enable the Steam Overlay while in-game > Disable.
  • Open Steam > Steam > Settings > Downloads > Clear Download Cache.
  • Unplug the Logitech or Thrustmaster racing wheel.
  • End the task for Razer Synapse or MSI Dragon Center.
  • Close all of your tabs to free up RAM and relaunch the game.

Fix 5: Repair/verify the game files

  1. Go to your Steam library.
  2. Right-click Undecember > Properties > Local Files.
  3. Select “Verify integrity of game files”.
  4. Launch Undecember.

Fix 6: Update Windows to the latest version

  1. Search for “Check for updates” using Windows Search.
  2. Update Windows to the latest version.
  3. Launch Undecember.

Further reading

How to Fix Scorn Not Launching, Crashing, or Freezing

How to Fix Overwatch 2 Crashing or Freezing

40+ Free Steam Accounts with Games

About the author

Lim How Wei

Lim How Wei is the founder of followchain.org, with 8+ years of experience in Social Media Marketing and 4+ years of experience as an active investor in stocks and cryptocurrencies. He has researched, tested, and written hundreds of articles ranging from social media platforms to messaging apps.

Lim has been quoted and referenced by major publications and media companies like WikiHow, Fast Company, HuffPost, Vice, New York Post, The Conversation, and many others. One of his articles about the gig economy was quoted by Joe Rogan who hosts The Joe Rogan Experience (arguably the most popular podcast in the world), in the This Past Weekend podcast by Theo Von.

In his free time, Lim plays multiple games like Tower of Fantasy, League of Legends, Counter-Strike, Hearthstone, RuneScape, and many others. He creates guides, walkthroughs, solutions, and more on games that he plays to help other players with their progression.