I don't know if this is possible but hey, It's worth a try. Desperate times, desperate measures. I am thinking electrum wallet stores the encrypted files locally on the computer drive.
So I do hope you haven't installed any apps or downloaded any media on to your computer after installing windows because this will overwrite and corrupt any files that could be salvageable. Download a recovery software like recuva and do a deep scan all the drives after which you will be able to recover files that have been found.
The problem is I don't know what files extension electrum uses for the wallet files stored locally on the computer drive (
Maybe someone more knowledgeable can clarify on this) otherwise it would be easier to specify on the recuva software what type of files (file extensions) you would like to recover.
After you have recovered the files Try searching for the wallet file with the file name you used or the default file names if you didn't name it like default Wallet or wallet_1 and after finding it, save it.
Now download Elecrum and then copy the saved wallet file into the wallets folder by following this path of Folders:
C:\Users\Your computer profile's username\AppData(hidden in windows by default, you have to unhide it)\Roaming\Electrum\wallets
Open electrum and select the wallet file you just recovered. Try entering the password you used when creating it and see if it opens.
Keep us updated if it works or not. This is trial and error method