Changing minecraft settings - Computers & Internet

It is not possible to change your username is minecraft without buying a new account from minecraft.net

There's no 'HD Mode' , but you can change how it looks. Pause the game and go to 'Video Settings'. Turn on 'Fancy Graphics'.

- Check System Requirements
- Set Java.exe to High Priority
- Turn down the Render (Fog) Distance
- Clean and Defrag your Registry (must use RegInOut it)
- Set High Performance Power Plan
- Optimize Background Services
- Change Affinity of JavaW.exe
- Defrag your Drives
- Delete Minecraft Application Data
- Decrease the Game Window Resolution
- Adjust Windows for Best Performance
- Change Nvidia Control Panel Settings
- Update Drivers
- Customize Video Settings
- Switch to Window Mode
- Disable Antivirus Real-Time Protection
- Clean Disk

After performing these tips your problem will be solved. Thanks

Try changing the server port in the server.properties file. There may be another program using this port. If that does not wor try to start the server without being connected to a network (note when the server is changed you must append it to the ip. For example 192.168.1.2:25564)

go to minecraft.net
login to your account
go to the profile tab at the top of the page
scroll down to ...how you look in game(or something like that)
click add file button... and add the file that you want to look like