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The "0x01: A critical installation file is missing" error can occur due to various reasons, including:
. This will automatically scan and replace missing or corrupted files. Add Exclusions 0x01 a critical installation file is missing
del /q/f/s %TEMP%\*
If you are installing onto a hard drive that is failing, the installer might try to write a file, fail, and then report it as "missing" when it tries to read it back. The "0x01: A critical installation file is missing"
If the missing file is a Windows system component (like a DirectX or C++ Redistributable file), the issue lies with your OS. the issue lies with your OS.