WinBook Tech Article
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Subject: Making a new Windows 95 Registry
Keywords: user.dat system.dat
Tech Article Number: WBTA17000441

NOTE: You, the customer, are solely responsible for data security. WinBook strongly recommends that you perform a backup of all personal data contained on your system prior to performing this procedure. Warning: WinBook will NOT be held responsible for any data loss incurred during this process.


To correct corrupted entries or other problems with the System Registry in Windows 95 the following steps must be taken:

  1. Click on the Start Button, go to Shutdown. Choose Restart in MS-DOS Mode.
  2. At the DOS prompt, type CD \WINDOWS and press enter
  3. Type ATTRIB -H -S -R SYSTEM.DAT and press enter
  4. Hit the F3 key, backspace over the T, and type a 0 and press enter
    (please note that the 0 in the filename extensions below are ZEROS, not OHS!)
  5. Hit the F3 key, backspace over SYSTEM.DA0, & type USER.DAT and press enter
  6. Hit the F3 key, backspace over the T, and type a 0 and press enter
  7. Hit the F3 key, backspace over USER.DA0, & type C:\DRVSPACE.BIN and press enter
  8. Type DEL SYSTEM.DAT and press enter
  9. Type DEL SYSTEM.DA0 and press enter
  10. Type DEL USER.DAT and press enter
  11. Type DEL USER.DA0 and press enter
  12. Type DEL C:\DRVSPACE.BIN and press enter
  13. Place the Windows 95 Setup Boot Disk in Drive A:
  14. Reboot the machine.
  15. Proceed with the Windows 95 Setup.

Here are some other considerations:

It will ask if you want to do a minimal install, only replacing certain files, or a complete install, replacing all Windows files. We recommend that you choose to replace all Windows 95 files, thus eliminating the possibility of corrupted, missing, or wrong versions of important files.

It will also ask what type of installation. Please choose Typical, as some of the other choices may leave you with pieces missing or added that you did not desire.

When it gets to install Exchange, do not check the box for Microsoft Network unless you really are going to log on to this commercial service. Do not check the box for Microsoft Mail unless you are connecting your machine to a network that is using Microsoft Mail for e-mail services.


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Disclaimer: This information is being provided to you as a service from the Technical Support Department of WinBook Computers. It is intended to assist you in the resolution of your technical problems or questions. If you feel uncomfortable implementing any of the information or suggestions contained herein then you should e-mail the WinBook Technical Support Department. WinBook will not be held responsible for any loss of information, data or programming as a result of the use of this TechNote.

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