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Your strategy works only if you have a clean copy of the OS or you buy one (since the thread is about Lenovo I assume you are talking about Windows). Typically, a new PC doesn't come anymore with a copy of the OS, but with a hidden recovery partition that will basically let you do a factory reset (meaning all the crap will show up again).


Microsoft itself has provided Windows installation media for download since Windows 8, including Windows 7 media. All you have to do is read your key off BIOS or the sticker.

And of course Windows 10 will be a free download.


Unless things have changed, usually the sticker key is only valid for a certain kind of media. E.g. VLK's only work with VLK images, retail keys only work with retail images...


Just recently installed Windows 7 Pro on a HP ProBook thing:

- looked up the Windows and Office license keys of the existing installation, using an utility

- download Windows 7 disk image from Microsoft and burn on a DVD

- take out the old disk with recovery partitions and installation with crappy bloatware

- put in a new SSD disk, boot DVD to install OS and install Office

- download and install HP specific drivers for peripherals (display adapter, fingerprint reader, wlan/3g, whatever)

- enjoy a relatively bloat-free Windows experience with improved battery life


I did the same, worked flawlessly. The only PITA was to put the ISO image on an USB stick.


It shouldn't be. You either use the "Media Creation Tool" which also can download the ISO or you the "Windows USB/DVD Download Tool".

http://windows.microsoft.com/en-us/windows-8/create-reset-re... http://wudt.codeplex.com/


That's true, but in the past I've found that if I call Microsoft support and explain that I'm re-installing, they'll give me a new key over the phone.


I usually use a KMS key to install and then use the Windows+Pause dialog to change my product key to the key that is stored in my BIOS.


Free? I thought that was only if you already had 7 or 8 installed.


Yes, Windows 10 requires having 7 or 8. Still free.


I think you can just extract the OEM Windows key from Windows, download a clean retail .iso of the same version and activate it with the OEM key. I'm pretty sure that worked with Windows 7, no idea about 8+.




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