Uninstall application from Phones storage and Backup phone without Screen? topic

My phone screen recently a mystery crack (Within the screen itself) I can barely see anything, just a little bit of the bottom. I want to backup my phone, the most I can get to is the home screen , putting a password is a struggle but I manage but from their it is near impossible to get to anything else, also I want to open my whatsapp to use the web interface just to reply to some messages before I get a new phone but Applock is installed on my phone and prevents me from getting to there, is there anyway I can delete the app from internal storage ( From PC)? Is there a folder where apps are kept on the phone where I can delete it?.