^hot^ - 0x01 A Critical Installation File Is Missing

Click the three dots under the game tile > Verify. This process scans your folders and automatically redownloads only the missing or corrupt files. 4. Clear the Temp Folder

Antivirus or "Smart Screen" filters may be blocking the extraction of certain files. 0x01 a critical installation file is missing

The string "0x01 a critical installation file is missing" could be: Click the three dots under the game tile > Verify