Veeam Backup & Replication installer fails to launch with the error: "Only one instance of Veeam Backup & Replication Setup is allowed."
KB ID: | 4304 |
Product: | Veeam Backup & Replication |
Published: | 2022-04-22 |
Last Modified: | 2022-04-22 |
Challenge
When attempting to launch the Veeam Backup & Replication installer, the following error occurs:
Only one instance of Veeam Backup & Replication Setup is allowed.

Cause
Another instance of the Veeam Backup & Replication Setup.exe is already running.
Solution
Open Task Manager and check if another Setup.exe process is already running.

Click here to send feedback regarding this KB, or suggest content for a new KB.
To report a typo on this page, highlight the typo with your mouse and press CTRL + Enter.
To report a typo on this page, highlight the typo with your mouse and press CTRL + Enter.