.DA0 File Extension

Windows Registry Backup File

Developer Microsoft
3.8  |  4 Votes

What is a DA0 file?

Backup of the Registry database used by Windows; contains a copy of original registry files; for example, system.da0 is the backup file for system.dat.

More Information

DA0 files may be used to replace corrupt registry files. They are not meant to be opened or edited by the user.

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Programs that open or reference DA0 files

Should not be opened or modified

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