Before upgrading the Host service, make sure that no backups or restores are running, and that the Management service has been upgraded to the same version. See Upgrade the Hyper-V Agent Management service .
Note: To upgrade the Host service silently, see Upgrade the Hyper-V Agent Host service in silent mode.
To upgrade the Hyper-V Agent Host service:
1. On the server where you want to upgrade the Host service, double-click the Hyper-V Agent Host service installation kit.
2. In the confirmation dialog box, click Yes.
3. In the installation wizard, click Next.
4. On the Installation Completed page, click Finish.