.DA0 file extension is Windows Registry Backup File. It contains copy of registry files, like system.dat. DA0 files may replace corrupt registry files. They are not meant to be opened or edited by use...
.DA0 file extension is Windows Registry Backup File. It contains copy of registry files, like system.dat. DA0 files may replace corrupt registry files. They are not meant to be opened or edited by user.
To open .DA0 files, update the application you normally use. Only latest version supports current .DA0 format. You need to check .DA0 file for viruses.
Main problem with .DA0 files is incorrect association with programs. Thus, unknown programs may start when you open a .DA0 file. To resolve this, double-click the .DA0 file icon to open it. If operating system has appropriate application, file should open.
To associate .DA0 files with correct application: On Windows, right-click .DA0 file and click “Open with”>”Choose another app”. Select program and check “Always use this app” box. On Mac, right-click .DA0 file and click “Open with”>”Other…”. Choose program and check “Always Open With” box.
.DA0 files supported by Windows operating systems. Creator of format is Microsoft. A program that can open .DA0 files is Microsoft Windows Millennium Edition.
Possible problems opening .DA0 files: corruption, incorrect registry links, accidental deletion from registry, incomplete installation of app that supports format, infection with malware, insufficient hardware resources.
Windows Registry Editor