Those who gave this a 1 star review bought this and found out it was loaded with a lot of pop-up ads and freeze too much.

You can disable ads and avoid open privacy but the mandatory updates will not allow users to do so in the future

I cannot activate , says product key is invalid ad Microsoft claims counterfeit product.

It's four stars because of the annoying ad for trying microsoft office free and stuff

I hate the ads as well

Don't even get me started on Cortana and the intrusive ads and pop ups they've managed to work into the core of the operating system

Too many unwanted ads

I hate the ads as well

I upgraded my laptops with it and it work as it should but had problems until the first update they came out with, now I have no problems

Everything works as it should.

Both had no problems and worked as it should.

Put it in, it updated my old computer running windows vista, still working as of 2/28/18 without any problems(freezing,stopping etc.).

I'd recommend anyone to ignore any negative reviews on the Operating system as this product works as it should for installing Windows 10.

Ridiculously overpriced (as to be expected from Microsoft) for a garbage OS.

In fact, now you can't even do that, as the OPK "license" is no longer available for Win 7 OEMs (even though everyone, incl Amazon is unloading them as fast as they can on the innocent buyers), so the buyers of Win 7 OEMs are stuck with a very expensive sixty-dollar coaster

You WILL want to disable ALL of the Microsoft telemetry 'features' as much as you can, and there are several good articles you can find on internet searches and on Youtube to help you do this

Works as it should on an older HP PC!

Microsoft said this key will eventually stop working as it's meant to only be used temporarily

Worked as it should, best price around.