How to fully uninstall VPNclient to avoid installation failure error 28000
I have run into a problem and tried different solutions proposed without success:
Dell XPS8500 with Win7 64bit Home.
I had the vpnclient for 64bit working end of last year but had to re-install my wlan and lan network adapters. Thereafter vpnclient didn't work anymore. As "normal" uninstall failed it did a manual uninstall by removing folders, files and registry entries as described in https://supportforums.cisco.com/thread/2168401:
and searched with the following keyword in the registry for the following items, and deleted any related entries.
Then, I run Ccleaner "registry cleaner" (on all errors concerning CISCO and DNE; but not the other stuff)
Nonetheless, after restart and trying to re-install from the vpnclient 64bit.msi file I still get:
Error 28000: Before installing the Cisco Systems VPN Client 5.0.07.0290, you must uninstall the prvious version of Cisco Systems VPN Client 5.0.07.0290, using the Add/Remove Program Files option in the Control Panel. Then restart your system.
Any help how to re-install the vpnclient would be highly appreciated.
PS: I just realized that under the network adapters there is a wan-miniport (IP) - deterministic network enhancer miniport
and a wan-miniport (network monitor) - deterministic network enhancer miniport? Might they cause the problem? But these I also can delete?
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