Will Switching to Linux Erase My Windows 11 OEM License?

January 16, 2026 4 answers
Asked by CuriousExplorer99
I recently got my first Acer laptop with Windows 11 Home OEM already installed and activated. I'm planning to wipe the SSD and install Linux Mint because I want a system that uses fewer resources. My biggest worry is about the OEM license; I've read that the OEM key is stored in the motherboard's UEFI (specifically in the MSDM table). Is it true that if I want to switch back to Windows later, I can just select 'I don't have a product key' during installation and it will automatically activate once I connect to the internet? I want to confirm that installing Linux won't erase or overwrite this key stored in the motherboard. Thanks for any insights!

Answers

SystemSavvy
Donโ€™t worry, the license is stored in the UEFI, and it will stay there even after you switch to Linux.
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LinuxNewb
I installed Linux on my laptop without ever running Windows. Later, when I went back to Windows, it activated right away.
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GadgetGuru
Exactly! The installer will pick up the key without asking for it, provided itโ€™s in the UEFI. You should have no issues.
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TechWhizKid
Yes, your Windows license will remain intact. If youโ€™re concerned, consider backing it up before wiping your current install, just to be safe.
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