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oem activation error

About this tag
OEM activation errors occur when a Windows license embedded in the firmware does not match the installed edition or when installation methods bypass normal activation checks. Common error codes include 0xC004C003, which can appear after a clean install with an unattended answer file. Troubleshooting steps include verifying the firmware license matches the installed edition, using standard installation media without customization, and ensuring the system is activated before modifying installation files. This tag covers discussions about OEM activation failures on laptops and desktops, particularly after switching out of S Mode or performing custom installations.
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    Win 11 OEM Activation problems on Laptop w/ Win 10 S Mode

    I purchased an HP laptop model 15-dw3033dx from Best Buy a few years ago. These had Windows 10 in S-Mode preinstalled. First thing I did after OOBE and initial activation was to go to the Windows Store and switch the laptop out of S-Mode, then I did a clean install of Windows 10 Home. I run...
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