When booting I get a blue screen

[rivjedi168]

Information​

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Summary​

When booting I get a blue screen

Steps to reproduce​

Boot through the Xbox PC app

Expected Result​

Booting the game succesfully

Actual Result​

Blue screen
Bad PKCS7 padding, Invalid length 0. Stop code: Cryptographic_Exception

Game Version​

Most current download available to Xbox on PC

Affected Feature​

• User Experience

Platform​

• Microsoft Store (Xbox)

Save Game​

View attachment Ferrelview.cok

Crash Dump and Logs​

View attachment Report_2025-07-27_162144235.zipView attachment Report_2025-07-27_162518505.zip

Additional Information​

Additional Information​

That save file was the last time I was successfully able to play the game

Screenshot or Video​

 

[AndrewT]

First, let's eliminate mods, as until they are updated by their authors they can cause problems after any new game patch. Please add --disableModding to the game's Steam launch options. Then start a new test city - do you still get these crashes then?





If so, please try this: Rename the "Cities Skylines II" folder in your C:\Users\[user name]\AppData\LocalLow\Colossal Order (to whatever you want) and then start the game. To see the AppData folder you'll need to enable View Hidden Items in File Explorer.





The game will create a new clean CS2 folder and if that works it means that something in your original folder is corrupt and preventing the game from starting. Do NOT delete your original folder though as your saves are stored there and if you want to keep playing you'll need to move them over to the new fresh folder!





Let us know if that helps you. Good luck!