No need for a new laptop just like the above said format the laptop and do a clean install of your OS is enough.

Then make sure you have installed antivirus to lessen the risk of getting malware and viruses(Like Kaspersky it prevents you to install fake Electrum based on my experienced). Then download Electrum directly from https://electrum.org/ and learn how to verify the downloaded software you can follow this https://bitcointalk.org/index.php?topic=5105901.0