What is this?

This knowledgebase contains questions and answers about PRTG Network Monitor and network monitoring in general.

Learn more

PRTG Network Monitor

Intuitive to Use. Easy to manage.
More than 500,000 users rely on Paessler PRTG every day. Find out how you can reduce cost, increase QoS and ease planning, as well.

Free Download

Top Tags

View all Tags

Error 0x80070643 PRTG DESKTOP




After upgrade PRTG, i'm update PRTG DESKTOP, install error 0x80070643

I have uninstall PRTG Desktop properly and restart computer. Same error message during installation No folder PRTG on "C:\Program"

Thanks, Aurélien

0x80070643 client desktop install

Created on Apr 17, 2019 8:16:28 AM

4 Replies

Accepted Answer



Hello Aurélien,

sorry for that experience. Here the steps for how to fix this problem:

1. Make sure you have PRTG Desktop uninstalled in Apps & Features or Programs & Features

2. If the error persists look up the registry key "HKEY_CURRENT_USER\Software\Paessler\PRTGDesktop\install"

3. If the key with the name "install" is indeed there, delete that key

4. Retry the installation

Best regards
Jakob Leurs

Created on Apr 17, 2019 10:14:25 AM by  Jakob Leurs [Paessler Support]

Last change on Apr 17, 2019 10:21:29 AM by  Jakob Leurs [Paessler Support]



Hello Jakob

I have delete the key in registery and retry the installation.

It works, thanks

Best regards, Aurélien

Created on Apr 17, 2019 11:09:42 AM



Ok, what do I do if that key doesn't exist and the PRTG Desktop application doesn't show up in my add/remove programs?

Created on Mar 19, 2021 1:39:20 PM



Hi there,

This almost sounds as PRTG Desktop is not installed properly. Did you try to manually install PRTG Desktop again?


Created on Mar 23, 2021 11:12:13 AM by  Sebastian Kniege [Paessler Support]

Disclaimer: The information in the Paessler Knowledge Base comes without warranty of any kind. Use at your own risk. Before applying any instructions please exercise proper system administrator housekeeping. You must make sure that a proper backup of all your data is available.