Microsoft windows card on xbox one?

The funds in the gift card go into your "Microsoft Account". The account can be used to make purchases on Xbox 360, Xbox One, Windows Phone, and Windows 8.

Both the Windows cards and the Xbox cards deposit the funds into your Microsoft account so it doesn't matter.

This page covers most of those details. Check the FAQ at the bottom.

The important parts would be

"Do gift cards expire?

No, gift cards purchased at retail never expire. Note that promotional gift cards like those from Microsoft Rewards or Xbox Live Rewards do expire."

"What is the difference between a Microsoft Gift Card and an Xbox Gift Card?

The cards work just the same. Once redeemed to your Microsoft account, you can spend your balance at Microsoft Store online, on Windows, and on Xbox."

"Where can I spend a gift card?

Once redeemed to your Microsoft account, your gift card balance is available to spend when you shop at Microsoft Store online, on Windows, and on Xbox. Gift cards do not currently work at physical Microsoft Stores."

Should cover you. One thing I'm not certain with is if "gift cards" can be used to pre-order physical goods. Might want to check with Microsoft Store support on that?

Yes, you can. Xbox gift cards and Windows gift cards all add to your Microsoft account balance which can be used in the Microsoft Store.

You can spend your Microsoft Gift Card balance at a Microsoft Store online, on Windows, or on Xbox.