Cannot install Azure Site Recovery

For Hyper-V VM migration to Azure, install the Azure Site Recovery provider on each Hyper-V host or cluster node, then register it with the Recovery Services vault by using the registration key downloaded from the portal. The supported install flow is:

1. In the Azure Migrate project, go to Execute > Migration > Start execution.
2. On Specify intent, choose Servers or virtual machines (VMs) and Azure VM.
3. Under How will you select workloads, choose From replication provider (Hyper-V).
4. In Prepare Hyper-V host servers, download the Hyper-V replication provider and the registration key.
5. Copy both files to each Hyper-V host.
6. Run AzureSiteRecoveryProvider.exe on each host and complete registration with the key.

For the specific error shown, the accepted Microsoft Q&A guidance is:

• Run the installer as a true local administrator.
• Temporarily disable antivirus.
• Check that no system services are stuck.
• If there was a previous failed install, clean up leftover files or registry entries before retrying.
• Review the install logs for the exact failure.

If using command-line installation, the provider install log is written to:

%Programdata%\ASRLogs\DRASetupWizard.log

Command-based install and registration steps:

AzureSiteRecoveryProvider.exe /q /x:.\Temp\Extracted
cd .\Temp\Extracted
.\setupdr.exe /i
"C:\Program Files\Microsoft Azure Site Recovery Provider\DRConfigurator.exe" /r /Credentials <key file path>

If the host uses a proxy, registration also supports /proxyaddress and /proxyport parameters.

If the host is part of a Hyper-V cluster, install the provider on all cluster nodes.

References:

• Migrate Hyper-V VMs to Azure
• How to fix Microsoft Azure Site Recovery Provider at Install ERROR service failed to start system service. - Microsoft Q&A