DOCUMENT:Q135344 08-AUG-2001 [winnt] TITLE :Unable to Install Third-Party Drivers During Windows NT Upgrade PRODUCT :Microsoft Windows NT PROD/VER: OPER/SYS: KEYWORDS: ====================================================================== ------------------------------------------------------------------------------- The information in this article applies to: - Microsoft Windows NT Workstation versions 3.5, 3.51 - Microsoft Windows NT Server versions 3.5, 3.51 ------------------------------------------------------------------------------- SYMPTOMS ======== If you install your third-party network interface card (NIC) driver (provided by your NIC manufacturer on floppy disk) during the original installation of Windows NT, and then upgrade to a later version of Windows NT using the CD-ROM, the following message appears when you attempt to install the updated NIC driver: Please insert the disk labeled: "" into : You are not allowed to change the drive letter to the NIC driver's source disk. Therefore you must choose Cancel and exit Windows NT Setup. CAUSE ===== This problem occurs due to text in the NIC information file (OEMSETUP.INF). The text should instruct Windows NT to prompt the user for the correct path to install the updated driver. The problem occurs during the upgrade because during the original installation of Windows NT, Setup copied OEMSETUP.INF to %SYSTEMROOT%\SYSTEM32\OEMNADx.INF, where x is a number designating the quantity of third-party drivers you have installed on your computer. WORKAROUND ========== To work around this problem: 1. Find the OEMNADx.INF file corresponding to your NIC driver in the original Windows NT installation. 2. Rename the NIC driver information file in the %SYSTEMROOT%\SYSTEM32 directory to another file name. For example, rename OEMNADx.INF to OEMNADx.PSS. 3. Upgrade to the later version of Windows NT. 4. Rename the OEMNADx.PSS file to OEMNADx.INF so you can configure or change NIC settings. Additional query words: prodnt 3.10 ====================================================================== Keywords : Technology : kbWinNTsearch kbWinNTWsearch kbWinNT351search kbWinNT350search kbWinNTW350 kbWinNTW350search kbWinNTW351search kbWinNTW351 kbWinNTSsearch kbWinNTS351 kbWinNTS350 kbWinNTS351search kbWinNTS350search ============================================================================= 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.