asked on

"You are probably missing a necessary root certificate."

I am trying to uninstall ZoneAlarm Pro from my laptop that is running XP Pro. When I click Change/Remove, I get the following error message:

"Validation failed for C:\WINDOWS\system32\vsdata.dll. You are probably missing a necesssary root certificate."

I can't find anything on this error message. Help would be much appreciated. Thank you.

war1

Greetings, HarkenBanks !

Reinstall the Root Certificates. Go to Add/Remove Programs in control Panel, on the right hand side click on Add/Remove Windows Components and find Root Certificates and disable it, then reboot and re-enable it.

If you stll have the same error, install ZoneAlarm in the same folder. Then uninstall.

Best wishes!

war1

HarkenBanks,

Before reinstall ZA, register some dll files according to this help page

http://forums.zonelabs.com/zonelabs/board/message?board.id=inst&message.id=28621#M28621

HarkenBanks

ASKER

I have followed both sets of instructions above and unfortunately still get the same error. I am unable to re-install (or uninstall) ZoneAlarm as I get the same error message when I attempt to do so. Any thoughts? Thanks.

war1

HarkenBanks, then you have to uninstall Zone Alarm manually. Do a search for ZA files and remove them. Do the same in the registry.

HarkenBanks

ASKER

Oh, boy. My system clock was set to some date in 2003. This is what was causing the validation to fail. In my search to solve the problem, I came across this post on the ZoneLabs forums:
http://forums.zonelabs.com/zonelabs/board/message?board.id=inst&message.id=39886#M39886. Thank you for the responses.

war1

Glad you got the date straightened out.

war1

Ok to refund.

ASKER CERTIFIED SOLUTION

DarthMod

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&quot;You are probably missing a necessary root certificate.&quot;

"You are probably missing a necessary root certificate."