I've just installed Electrum again and at first it identified the wallet file in my computer and I was able to open it with the long password I had.
This opened without an error, but there was nothing in the wallet.
Seeing the old wallet(
s) is normal even if you just installed Electrum if you previously uninstalled it without deleting your electrum data directory.
Given that this is your old wallet, old data directory and there's nothing in its history,
chance that it's empty to begin with is very likely because its previous history wont be deleted even if unused for a long time.
(
if you're using the wallet before, why would it be empty?)
If you're really sure that you've transactions before, you might have been using a different wallet file from the one that you've opened.
Firstly, check the "
Open" wallet menu to see if there are other wallet files available there.
If none, one probability is if you've been using a "
Portable" Electrum and also used a Standard Installer/Executable before. (
Windows has specific binaries)
Each uses a different data directory, so each has a different wallets directory and settings.
For example; if you've created a wallet in both versions but the one that you've funded is in the Portable Electrum,
the wallet file should be in "
electrum_data/wallets" portable datadir located in the same folder where ElectrumPortable was saved.
Then fast forward today, if you've installed the Installer or Stand-alone, it used the default datadir instead where the empty wallet is located.
TL;DL: Look for "
wallets" folder or "
electrum_data" (
then open the wallets folder inside), then check if there are other wallets inside the wallets folder.
but I am not sure where I can find the associated wallet address to search with in a blockchain investigation website.
Exchange withdrawal history, transactions from other wallets, etc. nothing? Hmm...