How do I recover the Ethereum wallet with the private key?
You need to set up a local node and synchronize it with the Ethereum network (this may take several hours depending on your internet connection). If you want to back up your wallet and make it secure then you can create multiple accounts for different purposes within one locally encrypted file. There is also a recovery tool available at Smart Private Key Hack
Once your local node is up and running, go to the Develop section and follow the instructions there to create an offline wallet and get all the information necessary to access it such as private keys, public address etc. You can then send any amount of Ether you want to your new account without risking a thing since it is secured by a personal password which only you know (the same way blockchain works). You might need some time though for the Ethereum network to synchronize with your newly created account and be able to execute transactions through this account from My Ether Wallet or Metamask.
How to recover an electrum wallet without seed?
You need to create a special wallet that does not have a seed. Create a new wallet, select “restore”, and instead of typing your seed, type a list of private keys, or a list of addresses if you want to create a watching-only wallet.
For example, if you have a Trezor or Ledger Nano S hardware wallet, then the 24-word seed will be generated for you. You can also use this method with Electrum wallet to recover your seed from its private keys. You might need a computer with Linux to do that since I am not sure it is possible on Mac or Windows-like how Blockchain does it. You can create multiple receiving addresses to store your Bitcoin and thereby protect yourself against theft by hackers and other scammers.
To access your wallet from another computer, you will need to have it running on that machine as well, and not have sent any Ether out yet. You have 30 days after each transaction until it is irreversibly recorded in the blockchain, but make sure you do not send all funds out before that time so that you can restore your balance after recovery if needed.
Electrum Private keys
You can find your private keys in the Electrum wallet under Settings -> Show Private Keys. If you have a multi-sig account, then each address will have its key. You should make sure that the computer is not connected to the internet or any other device when typing this information. Also we wish to let you know that we offer best Ethereum private key finder tool
Electrum private keys sweep
Go to the Wallet menu then Private Keys and select Sweep. Enter the private keys in the appropriate field. Leave the “Address” field unchanged. That is the destination address and it will be from your existing electrum wallet. Click OK. If it asks for a password, leave it blank and click OK. Then select a source address to send your funds from (your existing Electrum wallet) if you want to spend some of the bitcoins that are on one of those addresses. Leave “Amount” at 0. Click Next. Click Finish when done sweeping all private keys into your existing Electrum wallet (no need to add any more addresses). Once finished, you can see all destination addresses in the list generated by sweep under the Wallet menu or click the “Show Extended Seed” button. You will then be able to see extended public seed and private key information under Settings-> Show Extended Seed Info tab.
Electrum export private key
Go to the “Wallet” menu, then click on “Restore”. Click on next and it will ask for a password. Just leave it blank. Type your seed in the next window and click next to recover your whole Electrum wallet from its seed. You can recover it however you would like but I suggest using a VPS or another computer that is not connected to the internet, just in case you make any mistakes when typing in your seed. For more information visit https://smartprivatekeyhack.com