How to get rid of program whose uninstall throws NSIS error?

0

I installed OpenVPN 2.4.x on Windows 10 and the latest version was too unstable so I wanted to uninstall it to go back to a stable version. However, uninstalling it from both the the uninstall.exe that came with the install and Control Panel both resulted in NSIS Error:

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How can I get rid of a program whose uninstall causes this error?

UPDATE: I reinstalled it and retried the uninstall after the reinstall but still get the same outcome.

amphibient

Posted 2018-08-20T17:06:04.070

Reputation: 1 613

In order to solve this, you will need the same installer you originally used, do you have access to the OpenVPN 2.4.6 installer? – Ramhound – 2018-08-20T17:36:53.433

yes, I tried but couldn't – amphibient – 2018-08-20T17:39:41.187

So does that mean you have access to the file? – Ramhound – 2018-08-20T17:40:32.403

Yes -- the original installer does not enable uninstalling – amphibient – 2018-08-20T17:41:01.883

What are the contents of the installation directory? The error is caused by a CRC check failure. You can get around that by running the uninstaller with the /NCRC command option, in an elevated command prompt, or fix the integrity issue by reinstalling the same version then uninstall it normally. – Ramhound – 2018-08-20T17:46:21.483

There is no installation directory, just openvpn-install-2.4.6-I602.exe – amphibient – 2018-08-20T17:50:14.197

Try installing the program (over itself) and then uninstalling. – Mokubai – 2018-08-20T17:52:28.050

If you don't have an OpenVPN installation directory, then OpenVPN wasn't uninstalled properly, install it again and run the uninstaller contained within the installation directory. – Ramhound – 2018-08-20T17:52:46.523

I installed it and reinstalled it and retried the uninstall after the reinstall -- same thing happens – amphibient – 2018-08-20T18:03:03.867

Answers

2

There is a program called Revo Uninstaller, which may be of some help in this situation. It will try to run the original uninstaller, then go through a process to scan the Registry and hard drive for left over items.

You can find this program here: Revo Uninstaller on download.cnet.com .

KennZAney1

Posted 2018-08-20T17:06:04.070

Reputation: 36

While this at first looked like some sketchy hackware from China -- it actually worked !! – amphibient – 2018-08-20T19:38:28.390

It is sketchy hackware. You do more harm with then good with registry cleaners with shovelware like Revo Uninstaller. – Ramhound – 2018-08-20T20:54:05.850

@amphibient It has always worked for me, and I have never had any problems with it. On occasion, it has been the only product that worked. – KennZAney1 – 2018-08-27T13:40:47.367

Asked: 2018-08-20T17:06:04.070

Viewed: 1 089 times

Active: 2018-08-20T19:05:48.830