Error Message

12-23-2020,13:42:08 : DIFXAPP: ERROR: The driver installation failed. Attempting to undo system changes ... (Error code 0x643: 安装时发生严重错误)

12-23-2020,13:42:08 : DIFXAPP: INFO: Unable to revert to a previous driver store for service 'VirtFile'.

12-23-2020,13:42:08 : DIFXAPP: INFO: Will attempt to uninstall the driver.

12-23-2020,13:42:09 : DIFXAPP: INFO: service 'VirtFile' was deleted.

12-23-2020,13:42:34 : DIFXAPP: WARNING:We've waited a while for the service to get deleted, but it did not get deleted yet. Will prompt for reboot

12-23-2020,13:42:34 : DIFXAPP: INFO: Successfully removed '{24B4B1C2-B6AD-4690-8455-DB29A706DCE1}' from reference list of driver store entry ''

12-23-2020,13:42:34 : DIFXAPP: INFO: Driver Store entry '' removed.

12-23-2020,13:42:34 : DIFXAPP: INFO: RETURN: DriverPackageInstallW (0x643)

12-23-2020,13:42:34 : DIFXAPP: ERROR: encountered while installing driver package 'C:\Program Files\Veritas\Backup Exec\VirtFile\VirtFile.inf'

12-23-2020,13:42:34 : DIFXAPP: ERROR: InstallDriverPackages failed with error 0x643

12-23-2020,13:42:34 : DIFXAPP: RETURN: InstallDriverPackages() 1603 (0x643)

12-23-2020,13:42:34 : CustomAction MsiInstallDrivers returned actual error code 1603 (note this may not be 100% accurate if translation happened inside sandbox)

12-23-2020,13:42:34 : Action ended 13:42:34: InstallExecute. Return value 3.

12-23-2020,13:42:34 : Action 13:42:34: Rollback. Rolling back action:

如果卸载Backup Exec 20时系统信息残留，未卸载干净，将导致Backup Exec 的安装失败。

1 打开注册表编辑器Regedit， 查找以下注册表键值并删除：

警告：Windows 注册表编辑器使用不当可能会对服务器操作系统造成灾难性的后果。 更改 Windows 注册表时务必小心。应仅由对注册表编辑器应用程序的使用具有丰富经验的人员来修改注册表。 建议在进行任何注册表更改之前对注册表和工作站进行完整备份。

HKEY_LOCAL_MACHINE\system\CurrentControlSet\services\VirtFile

HKEY_LOCAL_MACHINE\SYSTEM\CurrentControlSet001\Services\VirtFile

HKEY_LOCAL_MACHINE\SYSTEM\CurrentControlSet 002\Services\VirtFile

HKEY_LOCAL_MACHINE\SOFTWARE\Microsoft\Windows\CurrentVersion\DIFxApp\Components\{24B4B1C2-B6AD-4690-8455-DB29A706DCE1}

HKEY_LOCAL_MACHINE\SOFTWARE\Microsoft\Windows\CurrentVersion\DIFx \DriverStore\ VirtFile_8FC047DAE1CE71A369B67C797A84AEAA02EF0455

2 删除 Virtfile.sys 文件，默认路径在  C:\Windows\System32\Drivers\VirtFile.sys    

3 删除文件夹 VirtFile_8FC047DAE1CE71A369B67C797A84AEAA02EF0455 ，文件夹路径 C:\Windows\System32\DRVSTORE\VirtFile_8FC047DAE1CE71A369B67C797A84AEAA02EF0455

4 重新启动服务器。