I just bought a used laptop that came with a pre-installed OEM version of Windows 11 Pro. Since I'm using it for business, I'm worried about potential spyware or malware that might have been left by the previous owner. So, I opted for the 'Reset this PC' option and chose 'Remove everything.' It did a complete reinstall, but I'm wondering if that's sufficient. Should I do a full clean install using a USB stick with the Windows Media Creation tool instead? I'm also concerned whether this would affect the OEM activation since I found a partial product key through the command prompt, but I'm unsure how to use that. Any advice?
3 Answers
Just to add, when you boot from the USB installer, you can delete all existing partitions on your hard drive during the installation process. This should set everything up fresh for you. If it prompts for a product key, just select 'I don’t have a product key' if your Windows was already linked to your MS account; it should recognize your hardware and activate itself. Just make sure you backup any important data first!
And hey, if you run into issues trying to do the clean install and get stuck in a loop, that can happen sometimes. Make sure your USB is properly prepared with the media creation tool and try again. Deleting those partitions should help break the cycle.
It's good that you chose 'Remove everything,' but that's not quite the same as a clean install. The factory reset can sometimes leave traces of issues behind. If you want the most security, performing a clean install using a USB is definitely the way to go. As for the product key, don’t sweat it! Windows 11 Pro should activate automatically if it's tied to your motherboard, so generally, you won’t need to enter a key during installation.
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