I Used Cracked Windows 10 Activated (download from internet) on my laptop, and installed Electrum wallet.
Is my wallet safe?
No.
Your wallet is not safe even with simple habits like using it on the same device that you browse on, if that device is a oireted copy then you can assume there are malwares or viruses on it.
is there a spy on the cracked windows?
how do know that Cracked didn't inject malware and spyware, and send the data from my laptop to their server?
You don't know. I will assume the worst that they did and not use electrum on that device.