Wednesday, January 6, 2016

Choosing between BIOS (Legacy) or UEFI during deployment

When deploying new systems with ConfigMgr you can choose between BIOS (Legacy) or UEFI mode. Since Windows 8 UEFI it's recommended because of security (SecureBoot) and faster OS loading. Therefore I prefer UEFI above of BIOS in Windows 8.x and Windows 10. When looking for UEFI setup have a look at this blogpost: PXE Boot files in RemoteInstall folder explained (UEFI)

When option 60 is missing in DHCP use the following commands:
-netsh dhcp>server
-netsh dhcp>add optiondef 60 PXEClient String 0 comment="PXE support"
-netsh dhcp>set optionvalue 60 STRING PXEClient
-netsh dhcp>exit

A Server Option is added after that, which is active on all scopes.

When the message Waiting for Approval is displayed after that do the following:
-Start Windows Deployment Services
-Start Properties on WDS server
-Go to the "PXE Response" tab
-Change PXE Response Policy to "Respond to all client computers"
After that UEFI deployment will be working fine :-)

Hope it helps!

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