Work — Windows Server 2008 R2 Activation Error 0x80072f8f

Navigate to: HKEY_LOCAL_MACHINE\Software\Policies\Microsoft\Windows\WindowsUpdate Set AcceptTrustedPublisherCerts to 1 .

While a dead CMOS battery is the classic culprit, on Server 2008 R2, several other factors come into play: windows server 2008 r2 activation error 0x80072f8f work

Modern Microsoft servers require TLS 1.2 , which is not enabled by default in many base installations of Windows Server 2008 R2. on Server 2008 R2