The certificate for the signer of the message is invalid or not found. It could be caused if the vendor’s certificate, has become invalid, compromised or pulled. But more often than not it could be ...
Try the following solutions to fix Windows Update Standalone Installer encountered an error codes 0xc8000222, 0x800f0905, 0x80070422, 0x800f0905, 0x800f0825 ...