When signing in to activate Version 10, you may see the error “Microsoft Edge can’t read and write to its data directory” and the sign-in window appears blank.
This occurs when the expected WebView2 data folder is missing.
How to Fix the Issue
Open the folder shown in the error message
In most cases, the path will be: C:\Users\[username]\AppData\Local\Temp\TTSDesktopAuthentication
Create the required sub-folder
Inside this folder, create a new folder named: EBWebView- Restart Version 10
Close Version 10 completely.
Re-open it.
Select Sign in to Activate again.
Once the EBWebView folder exists, the authentication screen will load correctly.