i had the problem as well a few minutes ago and saw that you have it as well.
So i can help you really good, i have a malware scanner and remover installed on my pc which is called
it is from MalwareBytes.
you should install it from the official site and open it.
then you should click on the start scan button, and then wait. you will see, how many problems were found.
after the scan you should be able to see which folders, programs are infected with ransomware and you can delete it then.
you have to restart your pc and then you will be seeing a text file opening on ur pc with the scan review.
IT REALLY WORKED FOR ME AND I HOPE YOU WILL BE HAPPY WITH THAT TOOL AS WELL
I ALREADY SAVED IT IN A SPECIAL FOLDER BECAUSE I KNOW I WLL BE INFECTED REALLY FAST ;)