A Critical Installation File Is Missing: 0x01

. This can resolve permission issues that prevent the software from accessing its own files. Verify Integrity (Steam/Games)

Check your or Virus Chest . If you see files related to your software there, restore them and mark them as "Exclusions." 0x01 a critical installation file is missing

What is throwing this error? Which operating system version are you currently running? If you see files related to your software

A: Yes, dynamic disks are often a source of Windows installation problems. Windows Setup is designed to work best with a "Basic Disk." Converting a dynamic disk to basic will erase all data on it, so back up your files first. You can do this by opening Disk Management ( diskmgmt.msc ), right-clicking each volume on the dynamic disk to delete it, then right-clicking the disk itself and selecting "Convert to Basic Disk". Windows Setup is designed to work best with a "Basic Disk