SymptomsWSUS service is installed and running but doesn't work. There are no any errors in event viewer.
CauseBITS service doesn't work properly inside VE.
Resolution1. Stop the VE with WSUS installed.
2. Mount it.
3. Make a reserve copy of QMGR.DLL in C:\WINDOWS\SYSTEM32 folder in VE. (X:\VZ\ROOT\XXX\C\WINDOWS\SYSTEM32 from the node)
4. Place attached QMGR.DLL in C:\WINDOWS\SYSTEM32 folder in VE.
5. Umount and start the VE With replaced QMGR.DLL, WSUS should work correctly.