About 2011 year, I use electrum windows wallet. Now I forgot private key and key phrase.
That was odd, because AFAIK there's no official Windows binary of Electrum in 2011.
Have you somehow used BTCurious' non-official Windows binaries? (
/index.php?topic=50936.msg641963#msg641963)
Anyways, there's no way to get into your wallet without those since Electrum isn't kind of a custodial service where your "
account" is hosted in a server.
And even if you get the seed phrase, it will still be troublesome to recover the wallet since it suffers to a derivation bug and will generate different keys when restored to the latest version.