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go to https://metamask.io/
1. Go to the https://metamask.io/ site.
2. Press "Get Extension", follow the further intuitive-understandable installation instructions of the plugin.
3. After installation, you will see the MetaMask logo in the browser to the right of the address bar. Click on it, and a pop-up window will appear.
NOTE: If after installation MetaMask interface appear you can continue in it without clicking on the MetaMask logo near the address bar of the browser.
4. If you see the choice to "Import your wallet or create a new wallet", choose "Create a new wallet".
5. You will see your Ethereum wallet address (wich begins with 0x, and next to it will be a button "copy ") - save it. It will be your account in the system.
6. Find the button "account details". In some versions of browsers and operating systems, it may be "hidden " in the additional menu.
7. In the account details will be the button "export private key ". Click on it, and after entering the password, your private key will appear on the screen. Save it and do not lose it.
Remind that the loss of a private key means the loss of control over the wallet forever. Restore it or change it to another is impossible even theoretically.
8. Once you've made sure that your private key is securely stored, from this moment you can use the wallet.2
1. Go to the https://doubleway.io site.
2. Push the button "Sign up".
3. If you came by referral link, then the registration page will be shown.
If you did NOT come by the referral link, you will be asked to enter the inviter id in the appropriate field (the inviter id coincides with the numbers at the end of the referral link) or the address of the inviter's wallet in the same field.
You need to enter the id or wallet of the inviter into this field and press the "done " button.
After that the page with registration will appear.
4. Click the big button "Sign up in 1 click ". In the pop-up window that appears, click "confirm ".
Registration complete. Now your account in the system.
After the succesful transaction You will be automatically redirected to the personal account.