The 21H1 update mainly fails to install due to the following two issues: Corrupt System Files: A sudden power failure or a deletion of an essential system file (by you or antivirus of your system) can make the system files corrupt, and this may fail the installation of the 21H1 update.
RSAT allows administrators to run Windows Server roles and features directly from a Windows 10 PC. IMPORTANT: Starting with the Windows 10 October 2018 Update, RSAT is included as a fixed “features on demand” within Windows 10 itself. See the Installation Guide ยป here for more details and ‘More Information’ for tips and troubleshooting.
Type cmd in the web search bar. Then right-click “Command Prompt” and navigate to “Run as administrator”. When prompted to manage the user account, select Yes. At a command type prompt, this will be received. Then press Enter. The command lists the available optional RSAT features that owners can install.
I’ve looked at two methods for installing the RSAT tools, one GUI based on the other, and using DISM. One of my Windows Ten VMs 1809 encountered RSAT knowledge error 0x800f0954 during installation.
The following table lists the RSAT tools available in Windows 10. Installs a list of Active Directory Domain Services management tools. DHCP server tools include DHCP, the management console, the DHCP server PowerShell module, and the netsh command line tool.
How do I enable RSAT on Windows 10 21H1?
Instead, follow the steps to use it on a device running Windows 10 version 21H1:
Are there any changes to RSAT in Windows 10 21h1?
21H1 does not make changes to Remote Server Administration Tools (RSAT). Starting with variant 1809, these tools no longer need to be downloaded separately, but all RSAT files are installed as an optional feature. A number of small changes in Windows 10 21H1 are returned in the tools for current and system deployment.
How do I add RSAT to Windows 10 21H1?
Instead, follow these steps on a device that’s running Windows 10, setting 21H1:

Ermias is a tech writer with a passion for helping people solve Windows problems. He loves to write and share his knowledge with others in the hope that they can benefit from it. He’s been writing about technology and software since he was in college, and has been an avid Microsoft fan ever since he first used Windows 95.