Upgrading from 10 to 11 would not leave any lasting changes on your motherboard after a reformat or downgrade.
Upgrading from 10 to 11 would not leave any lasting changes on your motherboard after a reformat or downgrade.
I'm preparing a setup where I'll duplicate a nearly identical Windows 10 Pro machine once hardware validation is complete. Right now, the system runs a temporary Windows 10 Pro installation with an embedded OEM key from the motherboard—just a test version. After full testing and hardware configuration, I'll transfer my previous setup onto this one. Before proceeding, I considered upgrading the current install to Windows 11 to become comfortable with it, since a transition by 2025 is planned. Although the older version doesn't meet the minimum CPU specs (Xeon 2667 v4), it supports TPM 2.0 and Secure Boot. I learned that even if Windows 10 is already present, it may allow an upgrade to 11 despite missing requirements, though not on a brand-new build. Notably, the system originally had TPM 1.2, not 2.0. A firmware update once changed the TPM version from 1.2 to 2.0, but I encountered an issue when attempting the upgrade: a key conflict or registration error forced me to reset TPM data before proceeding. This raised concerns about potential conflicts if I later clone the older Windows 10 system onto the new hardware. I intend to disable TPM during the test phase to avoid leaving any remnants on the motherboard after the clone. My goal is to ensure the upgrade path remains clean and predictable.
Microsoft's volume licensing treats win10 and win11 keys as identical. I haven't downgraded to win10 after installing or upgrading to win11, since there aren't enough significant issues with win11 to warrant it. For the worst-case scenario, I haven't encountered any problems using fTPM with version 2.0, even on some production servers.
No problem. As long as you have TPM and Secure Boot, you are good to go. Supported CPU is not a hard requirement. You'll get a warning at best, saying that Microsoft won't help you out if you have an issue, but that is about it. Basically, your system is old enough to not have driver updates for everything, nor UEFI/BIOS updates to ensure Windows 11 compatibility. If it were my guess, you are probably using fTPM (fimrware TPM). TPM emulated by the CPU. So, Intel released an update for it. This is just my guess. No. The signature validation of the OS bootloader is done by your motherboard UEFI. Nothing is stored un the UEFI. The only thing the OS can do (any supported OS), is top deliver a BIOS/UEFI update (aka: "firmware update") via Windows update, is the option is enabled in the UEFI (assuming the OEM gives you the option). Like driver updates, the UEFI update is issued by the laptop manufacturer for distribution through Windows Update. Saves you the hassle of going through many systems and update the BIOS manually on each system to keep everything secured.