Environment:
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Windows 10 / 11 (Desktop edition)
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Attempting to install Veeam Agent / Veeam Backup components
Description:
While trying to install Veeam, the process fails immediately with the following runtime error:
An error has occurred: Dieser Vorgang ist nur für Produkte gültig, die zurzeit installiert sind.
Translated: “This action is only valid for products that are currently installed.”
The installer runs, but the product does not appear in Programs & Features. Previous versions of Veeam were fully removed, including all files, services, and registry entries. Even after a clean install attempt, the installer fails silently or reports this error.
Steps Taken:
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Verified that all previous Veeam installations were removed.
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Cleared registry entries related to Veeam under:
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HKLM\Software\Veeam -
HKLM\Software\Wow6432Node\Veeam
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Deleted leftover installer files and MSI cache entries:
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C:\Windows\Installer\*Veeam* -
C:\ProgramData\Veeam -
C:\Program Files\Veeam -
C:\Program Files (x86)\Veeam
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Cleared BreadcrumbStore entries:
C:\ProgramData\Microsoft\NetFramework\BreadcrumbStore -
Restarted the system and ran installer as Administrator.
Current Behavior:
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Installer completes without visible error in some cases, but the software does not register or appear in Programs & Features.
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Attempting to reinstall the agent still triggers the same error in logs or silently fails.
Suspected Cause:
Windows MSI Installer / BreadcrumbStore retains ghost references to prior Veeam installations, causing new installs to fail because the system believes conflicting versions still exist.
Request:
Seeking guidance on fully removing hidden installer references or performing a clean install that Windows will recognize correctly.
