Two questions: Windows cold wallet & keys vendors

[cryptozio]

1) How can I set up a win cold wallet, is there any safe way to run a "live cd" of windows (from a usb pendrive)?

2) If I buy a legit key on the market section, where can I download a safe windows (7 or 8.1) iso without using torrent websites etc?

[asganauei]

2 You can download the ISO from microsoft website:
http://windows.microsoft.com/en-gb/windows-8/upgrade-product-key-only

[grue]

2 You can download the ISO from microsoft website:
http://windows.microsoft.com/en-gb/windows-8/upgrade-product-key-only

those keys are usually msdn keys and aren't eligible for download from microsoft (except from msdn itself)

you'll have to download an iso from whatever source you get, and verify the hashes with the ones at msdn: http://msdn.microsoft.com/en-us/subscriptions/downloads/ (no msdn account required)