I am upgrade Pulsesecure from version 5.3.7 to 9.0, but when install 9.0, install rollback. Try old version 5.3.7, samething happen. DIFXAPP: INFO: opening HKEY_USERS\S-1-5-21-1538607324-3213881460-940295383-238407\Software\Microsoft\Windows\CurrentVersion\DIFxApp\Components\{88989577-754A-494A-8080-09B5A9833C44} (User's SID: 'S-1-5-21-1538607324-3213881460-940295383-238407') ... DIFXAPP: INFO: ENTER: DriverPackageInstallW DIFXAPP: WARNING

RIVER_PACKAGE_LEGACY_MODE flag set but not supported on Plug and Play driver on VISTA. Flag will be ignored. DIFXAPP: INFO: Installing INF file 'C:\Program Files (x86)\Common Files\Juniper Networks\JNPRNA\Drivers\jnprvamgr\jnprvamgr.inf' (Plug and Play). DIFXAPP: INFO: Could not open file C:\WINDOWS\System32\DriverStore\FileRepository\jnprvamgr.inf_amd64_b3434d97a4f3ed82\jnprvamgr.inf. (Error code 0x3: The system cannot find the path specified.) DIFXAPP: ERROR: PnP Install failed. (Error code 0x3EE: The volume for a file has been externally altered so that the opened file is no longer valid.) DIFXAPP: INFO: Attempting to rollback ... DIFXAPP: INFO: No devices to rollback and in log, rollback install also fail. any suggestion? thanks in advance! br/wangyong