electrum wallet help needed funds missing I have a problem and not sure if it’s a hack or my back up has not worked.

I was sent a laptop replacement and asked to send the old one back on the warranty so I was removing all my stuff across, I first formatted the new replacement laptop put updates and anti-virus on before downloading a new wallet from electrum.org , using my seed (offline) inputted it into the into the downloaded wallet it asked me for my password and started synchronizing. 
Stupidly the day after I reformatted the replacement laptop and when I referred back to the old laptops electrum wallet, there are now 2 transactions from the same date as I tried restoring the wallet. I’ve used electrum and it kept my coins safe for over 2 years but now I’m cleaned out 

I’m finding it hard to understand if it would have been possible for me to somehow to have created a new wallet address and somehow imported the funds from the old seed would this be a possibility 
I have ran some software and it’s found the file Default_wallet on the formatted laptop, do you think it’s worth getting the software to recover the file or is it a waste of time? 

I really appreciate anyone’s help on this matter and more then happy to make a donation to if I can get them back.

I can all so provide the block chain link id if needed as says there was 2 transactions at this time this happened
You must have downloaded electrum from a fake site which served you a backdoored version of the program. If you still have access to your browser history I suggest going through it to find out the exact URL you used to download electrum. The official site is at electrum.org and downloads are served via download.electrum.org.