DOCUMENT:Q139822 08-AUG-2001 [winnt] TITLE :How to Restore a Backup to Computer with Different Hardware PRODUCT :Microsoft Windows NT PROD/VER:winnt:3.5,3.51,4.00 OPER/SYS: KEYWORDS:kbenv kbhw kbusage kbHardware ====================================================================== ------------------------------------------------------------------------------- The information in this article applies to: - Microsoft Windows NT Workstation versions 3.5, 3.51, 4.00 - Microsoft Windows NT Server versions 3.5, 3.51, 4.00 ------------------------------------------------------------------------------- SUMMARY ======= This article explains how you can restore a tape backup from one computer to another computer with different hardware, and maintain user accounts and working environment. This procedure may be needed if there is no backup domain controller or fault tolerance implementation on the network and the primary domain controller is down for some time. A backup set is intended to be used as a disaster recovery utility to maintain your system by backing it up and restoring it to the same, not a different computer. When you restore to a different computer you may encounter problems, due to hardware differences between the two computers. This procedure is not recommended by Microsoft and therefore is not supported. Microsoft makes no warranty, implied or otherwise, regarding the performance, stability or reliability of this procedure. MORE INFORMATION ================ NOTE: If you need to only change the primary hard disk and controller while maintaining user accounts and desktop settings, please see the following article(s) in the Microsoft Knowledge Base: ARTICLE-ID: Q112019 TITLE : Changing Primary Disk System After Installation If you want to restore a Windows NT backup from one computer to a similar computer, please see the following article in the Microsoft Knowledge Base: Q130928 Restoring a Backup of Windows NT to Another Computer To restore a tape backup from one computer to another computer with different hardware, and maintain user accounts and working environment: 1. From the original computer you need a tape backup of the registry and all other files you want to transfer. 2. Partition and drive information should be set up the same as the original computer. However, the primary partition should be a FAT partition and initially Windows NT should be installed onto a FAT partition (it can be converted later). Use the same computer name and domain name as the computer that is being replaced. 3. Create a directory off the root called CNFGTEST. From the backup set restore the Registry (%SystemRoot%\system32\config directory) to C:\CNFGTEST on the hard drive. 4. Delete SYSTEM.* and *.EVT files from C:\CNFGTEST. NOTE: These files must be deleted in order to remove hardware specific information. 5. Boot to DOS and copy the remaining files from C:\CNFGTEST to the current %SystemRoot%\system32\config directory. NOTE: You cannot replace SAM or Security hives while Windows NT is running. 6. Reboot the computer and make sure that everything is functioning in Windows NT. When you restart user accounts should be in place. 7. If you use TCP/IP with DHCP and/or WINS, you can restore the %SystemRoot%\SYSTEM32\DHCP and the %SystemRoot%\SYSTEM32\WINS directories. It may be necessary to reestablish the DHCP scope. 8. The %SystemRoot%\SYSTEM32\SPOOL and %SystemRoot%\SYSTEM32\REPL directories can now be restored. If you were using TCP/IP printing, printer queues will have to be re-created and IP addresses reassigned. 9. Convert to NTFS if the original install was NTFS. To replace data with permissions you must convert to NTFS. To convert the file system to NTFS, type the following from the MS-DOS Command Prompt: convert <drive letter> fs:ntfs" Next, restore the user data. Additional query words: prodnt ====================================================================== Keywords : kbenv kbhw kbusage kbHardware Technology : kbWinNTsearch kbWinNTWsearch kbWinNT351search kbWinNT350search kbWinNTW350 kbWinNTW350search kbWinNTW351search kbWinNTW351 kbWinNTSsearch kbWinNTS351 kbWinNTS350 kbWinNTS351search kbWinNTS350search Version : winnt:3.5,3.51,4.00 ============================================================================= THE INFORMATION PROVIDED IN THE MICROSOFT KNOWLEDGE BASE IS PROVIDED "AS IS" WITHOUT WARRANTY OF ANY KIND. MICROSOFT DISCLAIMS ALL WARRANTIES, EITHER EXPRESS OR IMPLIED, INCLUDING THE WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE. IN NO EVENT SHALL MICROSOFT CORPORATION OR ITS SUPPLIERS BE LIABLE FOR ANY DAMAGES WHATSOEVER INCLUDING DIRECT, INDIRECT, INCIDENTAL, CONSEQUENTIAL, LOSS OF BUSINESS PROFITS OR SPECIAL DAMAGES, EVEN IF MICROSOFT CORPORATION OR ITS SUPPLIERS HAVE BEEN ADVISED OF THE POSSIBILITY OF SUCH DAMAGES. SOME STATES DO NOT ALLOW THE EXCLUSION OR LIMITATION OF LIABILITY FOR CONSEQUENTIAL OR INCIDENTAL DAMAGES SO THE FOREGOING LIMITATION MAY NOT APPLY. Copyright Microsoft Corporation 2001.