Install issue

We have uninstalled our V3 and tried to install V4 and we get an Error 1603?? looking for help Thanks

Looks like a “dirty” uninstall.

There is probably a left-over in the registry, can you search the registry for “comodo” and see if anything turns up?

You can find a registry scanner here, RegScanner: Alternative to RegEdit find/search/scan of Windows

You can also use the search function of the forums, there are a lot of posts handling 1603 errors

Used the comodo cleanup tool and it worked!! Thanks :-TU

Have fun with 4.1.x :wink: