When you restore the system state on a computer that is running Windows 2000 from a backup set, do not attempt to re-join the Windows domain until after the system state has been restored. If you attempt to rejoin the domain before the system state is restored, the computer may respond with a message indicating that its computer account is missing.
Mounting Required Media During a Backup or Restore Operation
Do not use the Removable Storage Manager to mount tapes. When you perform a backup or restore operation, always rely on Windows 2000 Backup to mount the required media.
Computer Not in Domain After System State Restore
After you restore everything on the computer, you must rejoin the computer with the domain, even though the Network Identification indicates that the computer is already part of the domain. If the computer does not rejoin the domain, the following message appears:
“Trust relation failure.”
This occurs because the unique identifier for the computer on the network changed during the system state rebuild process. As a workaround, join a workgroup, restart the computer, rejoin the domain, and then restart the computer again.
Restoring Applications with Long File Names
In some cases, when you restore application with long file names, Microsoft Office applications may fail after the restore operation. This failure occurs because some components (specifically Office) register the location of their binaries in the registry using the short name (8.3 name). This short name may point to an incorrect location after the application is restored because the short name generation is based upon which application was installed first. Therefore, after you restart the computer, you must reinstall the applications that failed.
Target Must Be as Large as the Original Backup Drive
You must perform the restore operation on partitions that are the same size (or larger) as the partitions that are backed up. In some cases, Windows 2000 Backup may run out of disk space while restoring to the same volume. As a workaround, make sure that sufficient free space is available for the restore operation. When Backup restores active files, it requires some extra disk space. Backup restores files to temporary locations, and then moves them to the correct location when you restart the computer. This process also requires extra disk space.
Removing Only One Piece of Media from a Backup from a Library
If you remove only one piece of media from a backup from a library, you may lose data. If you remove the first piece of media from a spanned save set and then select the delete media from system option in Removable Storage Manager for any of the other elements of that save set, all media belonging to that save set on the drive is erased. If you do not want to erase your tapes, keep all of your spanned save sets together.
Backup Fails to Start a Scheduled Job Because the Wrong Media is in the Drive
When an unexpected tape is mounted in the drive, Windows 2000 Backup does not start the scheduled backup operation. When Backup runs, it expects to write to a specific piece of media. If this media is not in the drive and you are not using a changer, the backup operation fails. No notification of this failure is provided because the backup operation is running without the user interface (UI). The backup log identifies the failure.
Backup Stops While Spanning Multiple Disks
When Windows 2000 Backup encounters a write-protected disk while spanning multiple disks, it stops running. As a workaround, make sure that none of the media using for the backup operation is write-protected.
Backup Shows Incorrect Elapsed and Estimated Times
Windows 2000 Backup shows the elapsed and estimated times incorrectly. No workaround is available at this time. You can ignore the displayed time.
Backup Cannot Detect If a Remote Drive Is Removable
Windows 2000 Backup cannot detect if a remote drive is removable. It assumes that all mapped drives are fixed disks. If a removal storage device (for example, a Jazz drive) is located and shared from another computer on the network, and the remote device is mapped to the local computer, Backup does not detect that the device is removable. As a workaround, do not map a remote drive that is removable. Instead, perform the backup operation to a remote hard disk, and then copy the files to the removable media.
Restore Does Not Recognize Media When Spanned Across Different Formats
The restore operation does not recognize media when it is spanned across different formats. If you restore data that has been spanned across several pieces of media and if the file systems differ across the media (for example, some media are in NTFS and some are in FAT), the restore operation does not recognize some media as being part of the backup set.
Backing Up to an 8-mm AME Tape on an Exabyte EXB-220 Changer
When you back up to 8-mm AME tape on an Exabyte EXB-220 changer, Windows 2000 Backup reports a “write file mark” failure. You should upgrade this firmware to the latest 6.4.3 version.
Files Located at the End of a Large Backup Set
Files that are located at the end of a large backup set may not restore. This can affect millions of files on data volumes larger than 100 GB. As a workaround, you can use independent software vendor (ISV) backups that use autoloaders. Alternately, run your backup operation in segments (start lower in the volume tree).
Backup Restores Some Additional Files from Remote Storage Media
Windows 2000 Backup restores some additional files from Remote Storage media. When Backup is used to restore tapes created by Remote Storage, additional files may be created. Remote Storage Manager uses these files, and they have no value outside of the this system. No workaround is available at this time. You can ignore these files.
Path Names Greater than 1000 Characters in Length
When path names are greater than 1000 characters in length, an access violation occurs in NTBackup.exe. Avoid using long path names for restore operations.
Restoring an Encrypted File
that has a File Hard-Linked to it
Restoring an encrypted file that has a file hard-linked to it destroys the link to the original file. You must manually re-link the file after the restore operation is completed.
Running Backup over Terminal Services
When you run Windows 2000 Backup over Terminal Services, some settings may get confused. Backing up drive letters that are mapped on both the local computer and the remote computer may cause Backup to stop responding at the prompt (Task Manager) for scheduled backup operations.
Restoring Exchange
If you attempt an Exchange restore operation, the Exchange Service must be running. If this service is not running, no options display for the Exchange restore operation.
Performing a Complete System Restore
If you perform a complete system restore operation from tape, you must first complete a minimal installation of Windows 2000 in the same directory as the previous installation. If the directory or drive is different, the system restore operation fails. Note that clean installations do not allow an installation location other than the default directory. In the case where the previous installation was not in the default \Winnt directory, you must complete a second, minimal installation in the non-default location. If there is one installation already on the hard disk, Setup prompts you about whether you want to overwrite the current installation or install to an alternate location.
Beginning a Backup or Restore Operation
When Windows 2000 Backup begins a backup or restore operation, it always attempts to mount a tape. If the requested tape has already been mounted by another process, the backup operation fails.
Hardware
The following sections describe issues related to hardware installed on computers running Windows 2000.
Network LAN and WAN Adapters
The Windows 2000 CD includes network adapter drivers from third-party vendors. These drivers meet Windows Hardware Quality Lab (WHQL) standards for installation and operation. During installation, Windows 2000 detects and successfully installs most adapters, such as Peripheral Component Interconnect (PCI), PC Cards, and Industry Standard Architecture (ISA) Plug and Play adapters. After Windows 2000 installation completes, you may need to manually install some adapters.
Some adapters may not function after you upgrade to Windows 2000. Changes in the registry?such as adapter driver name changes, service dependency changes, or the use of an obsolete network adapter driver?may cause these problems. Contact your hardware vendor about updated files for your drivers.
You should not use 8-bit network adapters with Windows 2000. Because of customer requirements, Windows 2000 still supports some of these adapters, but they may not perform reliably.
Hardware Compatibility List
For the most up-to-date list of supported hardware, see the Hardware Compatibility List at the Microsoft Web site (http://www.microsoft.com/hcl/). Your Windows 2000 CD includes a copy of this list (drive:\Support\Hcl.txt) that was accurate as of the date Windows 2000 was released.
Plug and Play
Windows 2000 is a Plug and Play operating system. If your computer contains ISA cards, they may be set in a manually configured mode that requires you to define the resources. These adapters?such as sound cards, network cards, and modems?operate better in Windows 2000 if you set them to operate in ISA Plug and Play mode. For more information, refer to your hardware vendor documentation.
Upgrading from Windows 95 or Windows 98
When you upgrade from Windows 95 or Windows 98, Windows 2000 may list the following adapters as not supported:
? 3Com EtherLink III EISA 10/100 (3C597-TX)
? IBM Etherjet ISA Adapters
? Crystal LAN CS8920 ISA Adapter
? Olicom Plug and Play Token-Ring ISA 16/4 (OC-3118) Adapters
However, after you install Windows 2000, they work correctly. In some instances, you may need to reset static network settings.
Upgrading from Windows NT 4.0
When you upgrade from Windows NT 4.0, Windows 2000 may list the following adapters as not supported:
? 3Com EtherLink 905x 10/100 series of Adapters
? Compaq Ethernet or Fast Ethernet PCI Adapters
? DEC FDDI Controller PCI (Defpa) Adapters
? HP EN1207D-TX PCI 10/100 Fast Ethernet Adapters
? Intel EtherExpress PRO/10 Adapters
? Intel Pro/100 Intelligent Server Adapters (I960)
However, after you install Windows 2000, they work correctly. In some instances, you may need to reset static network settings.
Wireless LAN Devices—Upgrading from Windows 95 or Windows 98 to Windows 2000
During the upgrade process from Windows 95 or Windows 98, site-specific configurations (SSIDs) for wireless LAN cards do not get upgraded. In order to regain connectivity after the upgrade, you must reapply the site-specific settings.
You can access the configuration for any adapter from the Device Manager by using the Advanced Properties tab. You can also use some vendor-supplied utilities that are designed for this task.
Setup Does Not Load Drivers During Upgrade (Code 32)
When you upgrade from previous beta versions of Windows 2000, some devices may be disabled with a “Code 32” message in Device Manager. Although it is theoretically possible that this problem could occur for multiple types of devices, it is a race condition that is most likely to effect CardBus cards. This problem has not been encountered on other types of devices. Also, it does not effect other upgrade paths, such as Windows 95, Windows 98, or Windows NT 4.0, nor does it effect clean installations of Windows 2000.
As a workaround, you can uninstall and then re-install the device in Device Manager.
? To uninstall and then re-install the device in Device Manager
1. In Device Manager, highlight the device.
2. On the Action menu, click Uninstall.
3. After the device is uninstalled, on the Action menu, click Scan for hardware changes.
This re-installs the device and it should work properly without displaying a yellow “!” indicator in Device Manager.
PCI Network Adapters and Media Sense
When connecting through non-N-way compliant 10/100 switches and hubs, some PCI Network adapters that are N-way compliant cannot detect Network Media Speeds.
Adapters that Do Not Support Media Sense and Other Issues
The following adapters do not support Media Sense, do not show the correct connection speed, cannot update the connection speed after being disabled and enabled, or do not show that they are connected when the cable is inserted if they are restarted without network cables attached:
? Hewlett Packard HP 27247A PC LAN/16 ISA Adapters
? Hewlett Packard HP 27250 PC LAN/8 ISA Adapters
? Hewlett Packard HP 27247B PC LAN/16 TP Plus ISA Adapters
? Hewlett Packard HP DeskDirect J2973A 10baseT PCI LAN Adapters
? Intel Pro/10+ PCI Adapters
? SMC EtherEZ 8416
? SMC EtherCard Elite 16 Ultra (8216)
LAN Adapters
This section describes issues with LAN adapters installed on computers running Windows 2000. Some LAN adapters have limited support or no support in Windows 2000.
Adapters with Known Issues
This section identifies LAN adapters with known issues related to installation and operation on computers with Windows 2000 installed. Adapters are listed in alphabetical order by manufacturer.
Sporadic Loss of Connectivity Under Heavy Network Load
If you have an adapter that stops sending or receiving data under heavy network load con