hello
sorry my english isn't the best.
I had download the fake wallet Electrum 4.0 this was hackt and all my bitcoins are in this transaction.
I have keys and seed of my wallet, but I dont know how I can stop this transaction, to get the bitcoins back.
This does not exist, you downloaded a fake wallet designed to steal bitcoin.
True Electrum is located in
https://electrum.org/ Last version is currently
3.3.4.
All bitcoin transactions are final, nothing can be recovered once your broadcast gets 1 confirmation in the blockchain.
You should format that computer and start from zero, i recommend you use
Linux.
This forum contains an
Electrum Wallet sub-forum where you can inquire more information.
Moral of the story: Stop downloading programs to handle money without double checking first. This is a problem that has been occurring to windows users for decades, and its not even related to Bitcoin, its called
phishing. There is no excuse if you install a trojan or malware when its because of your own actions. Electrum is not at fault here, there have been phishing attacks from email and the web since at least the 90ies.
Yes there is a slight chance to save funds if you hurry and send them to another address using a higher fee, before it gets confirmed. To do that just download true Electrum (from a clean computer) recover your wallet using the seed words and do the transaction, do this real quick. Good luck.