System.dat

SYSTEM.DAT is part of the Windows 95 Registry. It contains hardware and computer settings, including those that used to be stored in the various Windows 3.x .ini files. The information stored in the Registry is required for Windows 95 and the installed applications to run properly.

Every time Windows 95 starts, it makes a backup copy of System.dat, called System.da0. This ensures that the latest system settings are saved.

NOTE: For extra protection, be sure to create a Startup diskette during Windows 95 Setup. This diskette preserves a copy of the basic System Registry (System.dat), and can be used to restore the Registry if it is ever damaged.