What causes the error that Windows could not start because the following file is missing or corrupt?
How to fix the Windows\System32\Config\System is missing or corrupt?
This post fromMiniToolwill show you the solutions.

Select r at the first screen to start repair.
How to Retrieve Data from the Unbootable Computer?
To retrieve data from the unbootable computer, MiniTool ShadowMaker is strongly recommended.

MiniTool ShadowMaker is a piece ofprofessional backup software.
It is designed to back up the operating system, files, folders, disks and partitions.
It also enables you to sync files to other locations with the Sync feature.

You need the help of bootable media to boot computer and retrieve data.
MiniTool ShadowMaker enables you to do that.
Now, here is the tutorial.

Install MiniTool ShadowMaker on a normal computer.
Launch it and clickKeep Trialto enter its main interface.
Go toToolspage and clickMedia Builderfeature tocreate the bootable media.

Enter the BIOS and change the boot order.
Then you will enter the MiniTool Recovery Environment, go to theBackuppage.
ClickSourcemodule and chooseFolders and Files.

Then pick the files you want to retrieve to continue.
ClickDestinationmodule to choose a target disk to save the backup files.
good idea to save the backup files to an external hard drive.

8 After selecting the files and folders, you might clickBack up Nowto perform the backup task immediately.
How to Fix Windows\system32\config\system File Is Missing or Corrupt?
If you have the same problem, try these solutions.
If this solution does not take effect, try other solutions.
So, to make it fix the Windows\system32\config\system file download error, you could check the hard drive.
Then the chkdsk utilities will begin to scan your hard drive.
If this solution does not take effect, try the following solutions.
Related article:Top 4 Free Hard Drive Test Tools Every Windows User Must Know
3.
Open Command Prompt as the way listed above.
- key in the following commands and hitEnterafter each command.
After that, you’re free to delete the current registry files.
delete c:\windows\system32\config\systemdelete c:\windows\system32\config\softwaredelete c:\windows\system32\config\samdelete c:\windows\system32\config\securitydelete c:\windows\system32\config\default
4.
Then you’ve got the option to repair the registry hives from the repair folder.
If the above solutions are not effective, you’re able to try the last solution.
Then you might follow the wizard to complete Windows installation.
In this way, it can effectively safeguard your system and files.
To create a system image, MiniTool ShadowMaker is able to do that.
And you might read the post:How to Back up Windows to Safeguard your machine?
Try MiniTool!to know more detailed operation instructions.
This post also has shown 5 ways to fix the error that Windows\system32\config\system is missing or corrupt.
There are three common reasons that corrupt the Windows registry.