This article describes the Microsoft Windows 95 Emergency Recovery Utility.
You can use the Windows 95 Emergency Recovery Utility to create a backupof your system configuration and registry files in case a problem shouldoccur.
This utility is located on the Windows 95 CD-ROM in the Other\Misc\ERUfolder.
Backing Up Your Configuration
To create a backup of your system configuration files, double-click theEru.exe file and follow the instructions on the screen.
You will need to choose a location for storing the backup information. Bydefault, the information is stored on a floppy disk in drive A. However,you can choose to store the backup information in another location, such alocal hard disk or a mapped network drive. The files that are backed up bydefault are:
Config.sys Autoexec.bat Win.ini System.ini Protocol.ini User.dat System.dat Io.sys Command.com Msdos.sys Explorer.exe
Note that the User.dat file that is backed up is the User.dat file in theWindows folder. The User.dat file in the Windows\Profiles\<username>folder is not backed up by default.
If you want to back up only certain files, click the Custom button in thefile list screen. You can choose to back up only the files you want.
Restoring Your Configuration
To restore the backup information, start your computer at a command promptand then run Erd.exe. If you do not want to restore all the files, pressSPACEBAR to select or deselect files. Note that you cannot run Erd.exewithin Windows 95. You must run this utility at a command prompt. If yousaved your backup information to a network drive, you must be able toaccess the network drive at the MS-DOS level.
To start your computer at a command prompt, restart your computer, pressthe F8 key when you see the "Starting Windows 95" message, and then chooseCommand Prompt Only from the Startup menu. Then, change to the floppydrive or directory containing the backup information and run Erd.exe.
Microsoft recommends that you use the Emergency Recovery Utility to createa new backup each time you make significant changes to your system, suchas adding new hardware or software.
For information about a potential problem backing up files with theEmergency Recovery Utility, please see the following article in theMicrosoft Knowledge Base:
Emergency Recovery Utility Does Not Back Up Files
Note that the Emergency Recovery Utility cannot back up all theconfiguration files if there is not enough room on the destination disk.If there is not enough room on the destination disk, the EmergencyRecovery Utility backs up as many files as will fit, skipping the largestfiles first. For example, the Emergency Recovery Utility usually cannotback up the registry files (System.dat and User.dat) if you try to back upthe configuration files to your Windows 95 Startup disk.