I would like to know if there is any tutorial how to do the stake for Windows.
all you need is:
Download the wallet
Install it
Let it sync
encrypt it (password). NEVER FORGET IT! note it down somewhere
back it up (on a pen or similar)
after all these steps are done try doing a test tx to the wallet
if all goes well, transfer the coins you want to stake to the wallet and unlock it for mining.
The coins will need 36h to mature. after these 36h lock your wallet and restart it, so that your inputs become valid.
Now that you have restarted it, unlock it for mining and you are all good.
30% a year is a good passive income.
What about adding nodes? Saw in the first comment that there are nodes for miners...