Could anyone help me? My Pi is stuck on this screen when it powers up.
Please, before working with any computer, or any device at all, read the documentation!
Official documentation for Raspberry Pi is here: https://www.raspberrypi.org/documentation/
What you might like, is here: https://media.readthedocs.org/pdf/raspberry-pi-intro/latest/raspberry-pi-intro.pdf. Read the part 2.3, "Start up", and you will find:
After the computer is finished loading the operating system you land in the shell.
After this, you will find, how to configure everything and start a GUI.
first, try running
startx. if that doesn't work, it means you probably don't have the desktop installed(maybe you have raspbian lite). To install the default raspbian pixel desktop make sure your connected to the internet then run:
sudo apt-get update sudo apt-get upgrade sudo apt-get clean sudo apt-get install --no-install-recommends xserver-xorg sudo apt-get install --no-install-recommends xinit sudo apt-get install raspberrypi-ui-mods
then type 'startx'
I hope this helps.
Based on the screenshot you have provided, you are logged in as user "pi" on Raspbian. I assume your RPi is not frozen, it accepts your typed input, you have installed the operating system "Raspbian Stretch with desktop" and you are stuck in how to get to this desktop. (If this is not the case, please provide more details.) Based on this I recommend:
Boot your RPi (it should be like shown in your screenshot), run from the command line
sudo raspi-config, press Enter and now you should see a main menu with several options (like this screenshot).
Navigate with the arrow keys (down/up) to 3 Boot Options Configure options for start-up and press Enter.
Navigate to B1 Desktop / CLI and press Enter.
Navigate to the desired setting (might be B4 Desktop Autologin) and press Enter. It will beam you back to the main menu.
Navigate with the arrow keys (right/left) to the option Finish and press Enter.
The answer to "Would you like to reboot now?" should be Yes.
In case you wanted your RPi to boot a desktop environment, you should be happy now.
To change the boot option later from the desktop: open Menu > Preferences > Raspberry Pi Configuration and change the option in the tab System.