do not be scared
```
> bitcoinqt -regtest -addresstype=bech32 -walletrbf=1 -server -rpcallowip=127.0.0.1
```
+ Do not be scared by the alert about >160GB being required. This would be true only if you launch Bitcoin Core for mainnet, as it would try to download the whole blockchain. Be sure you are launching regtest: that one will require almost no space.
5. in the GUI open the console (Help | Debug Window | Console) type
```
getblockcount
