Bitcoin Forum

Hello,

I entered Electrum 'Receive' tab and I saw that my address changed.
Both new and old addresses are present in Addresses tab.

Why Electrum change my address?

This is normal thing and Electrum do this just for your privacy-every time you receive BTC address in receive tab is changed to new one,but you can still use your old address any time.As you say both address + others are in address tab,and you can also see your change address there.You do not have to worry about it,it is good option to protect your privacy.

So I can use all addresses from the 'Addresses' tab?
Electrum automatically generate them all for privacy reasons?

Yes,you can use them because they are part of your wallet and they will always be in wallet.As I say before you can always use same address,but if you want more privacy then it is better that for every payment you use new address.Also when you want to send to someone for example 0.1 BTC and you have in total 0.5,Electrum will send 0.1+fee to destination address and 0.4 will be send to change address(for free).This is also option which protect your privacy,but it can be deactivated if you want.

You should take some time and read how Electrum work : http://docs.electrum.org/en/latest/faq.html

If you're interested there is a detailed answer to this question here (https://bitcoinelectrum.com/frequently-asked-questions/#why-does-electrum-give-me-a-different-address-everytime) since it gets asked a lot. You should use the receive tab (https://bitcoinelectrum.com/how-to-use-the-electrum-receive-tab/) and not bother with the addresses tab unless you really need to see old addresses.