Hi Baneesh Pal Singh,
Before installing and activating ESU keys we should perform the following actions.
1.Install the following SHA-2 code signing support update and servicing stack update (SSU) or a later SSU:
Windows 7 SP1 and Windows Server 2008 R2 SP1:
Servicing stack update for Windows 7 SP1 and Windows Server 2008 R2 SP1: March 12, 2019
and
SHA-2 code signing support update for Windows Server 2008 R2, Windows 7, and Windows Server 2008: Se...
Windows Server 2008 SP2:
Servicing stack update for Windows Server 2008 SP2: April 9, 2019
and
SHA-2 code signing support update for Windows Server 2008 R2, Windows 7, and Windows Server 2008: Se...
2.Install the following SSU and monthly rollup:
Windows 7 SP1 and Windows Server 2008 R2 SP1:
Servicing stack update for Windows 7 SP1 and Server 2008 R2 SP1: September 10, 2019 (KB4516655)
and
October 8, 2019: Monthly Rollup (KB4519976)
Windows Server 2008 SP2:
Servicing stack update for Windows Server 2008 SP2: September 10, 2019 (KB4517134)
and
October 8, 2019: Monthly Rollup (KB4520002)
- Once activated, continue to use your current update and servicing strategy to deploy ESU through Windows Update, Windows Server Update Services (WSUS), Microsoft Update Catalog, or whichever patch management solution you prefer.
For more information, please refer to: How to get Extended Security Updates for eligible Windows devices
Bests,