I don't know which forum this should be posted to, If it should be moved to a more relevant one please let me know which one ....

So here goes....
Was running reader 7.0.9 and was auto-offered upgrade to 8.0.
Installation stopped with "previous version cannot be removed"

Next, Un-installed reader 7.0.9 using CLEANSE UNINSTALLER 2.5 which removed all files ( though noted that the app. key[see Below] {AC76BA.....} could not be removed).

Attempted to install a downloaded version (From Adobe)of Reader 8.0
Same problem:
Symptoms--
Whilst in setup stage of "Removing Applications":
>>Error<<
"Cannot remove Application{AC76BA86-7AD7-1003-7B44-A70500000002}COMMAND LINE, UPG..."

On Exit... an Error Box has Message:
"Error1714: Older version of Adobe Reader 8 cannot be removed"

{AC76BA86-7AD7-1003-7B44-A70500000002} occurs in a number of places in the registry.

I am now stuck with no versions of Adobe Reader and cannot install until the reference is removed.

Any ideas what I should do as I now cannot use any version of Adobe reader?

Regards
Dj

The problem was solved using MS Windows Install Clean up Facility From MS Support,
Then reinstalling Reader 7.9 Remove using Add/Remove in control Panel Finally installing the Reader 8.0 downloaded version again.
Adobe support are aware of the issue and the removal procedure was derived from their support page.
Dj

Thanks for the update - sounds like many others may find your post useful for solving their problems over the next few months