If you don't want to install Bitcoin core and wait a long time for it to sync you can use the instructions below to extract your private keys from multibit and import them into electrum. The instructions worked for another user who couldn't send his Bitcoins directly from his multibit wallet because of a bug.
All you need is your multibit wallet words.
I successfully tried generating a wallet in multibit HD and retrieving its extended private key using an offline copy of the webpage linked below.
https://iancoleman.github.io/bip39/Once you have the extended private key you can use it to get your Bitcoins back by importing it into a blockchain.info wallet. The page also shows a list of private keys for each address in an HD wallet, and you can import them into electrum or some other wallet to access your Bitcoins.
To use the webpage right click the link and choose save as , then press enter.
Open it offline in your browser, then click the BIP32 tab below the big Derivation Path heading.
Put the text below in the BIP32 Derivation Path box.
m/0'/0
Type your wallet words into the BIP39 Mnemonic box.
The page should automatically generate your extended private key and a list of receiving addresses for your wallet.
If your Bitcoins are in a change address then repeat the steps above, but type the text below in the BIP32 Derivation Path box.
m/0'/1
The page should show you all your change addresses with their private keys.
If aren't sure if that webpage is trustworthy it was recommended by a respected member of bitcointalk called dooglus who's a clamcoin dev, and runs a well known dice site. This is the post which he recommended it in.
https://bitcointalk.org/index.php?topic=623147.msg12270560#msg12270560You can also scan it at the virus scanner link below to check if it's safe.
https://virustotal.comThe only reason I said to run it offline was to be extra safe. It's possible to use it online. but less secure.
How can I use my extended private key and a list of receiving addresses for my wallet to open my locked wallet? Can you explain this step-by-step?
Use the webpage I linked to in my earlier post. After you have entered your 12 wallet words into it and put m/0'/0 in the BIP32 Derivation Path box the page should automatically display the addresses in your multibit HD wallet together with their private keys.
You should be able to see them about half way down the page below the big heading that says "Derived Addresses".
If you know which address contains your Bitcoins you need to copy the private key shown next to that address.
If you don't know which address contains your Bitcoins then open the blockchain.info link below and starting at the top of the list search blockchain.info for each Bitcoin address in your list until you find the one containing your coins.
Don't let blockchain.info or anyone else know any of your private keys
https://blockchain.info/After you find which of your Bitcoin addresses contains your Bitcoins copy its private key, then follow these steps.
Download electrum 2.6.4 portable from here (because the latest 2.7 versions are buggy).
https://download.electrum.org/2.6.4/electrum-2.6.4-portable.exeCreate a new folder and copy electrum-2.6.4-portable.exe into it, then double click it to start the wallet.
An install wizard window should open. At the top of it select the "Restore a wallet or import keys" option, then click the "next" button.
Another window will open with a box in it that you can type your private key into.
After that click the "next" button and another series of windows should open. Leave each window's settings as they are and click the "next" button in each one until the wallet opens.
You can leave the password boxes blank, the electrum wallet can work without a password, and its password is not the same as your multibit wallet's password.
When the wallet opens it should sync within minutes and show your Bitcoins. You can use it to send them wherever you like.
