Problems with iMac after installing Windows

Hey guys!

At the moment I am working on my MacBook, as I experienced a fault, while installing Windows 10 on my iMac at work. The problem is however that my iMac is showing a black screen, so does anyone know why?
I love my MacBook, but it undoubtedly is not my preferred workstation, and furthermore I sadly also have many unfinished documents on my iMac. And no, I have no backup I need the iMac in order to work on my non-profit service site.

I cannot even see the mouse cursor, so I have no idea what to do...

Thank you in advance!

 

Hi @UlrikJ , please follow the steps suggested in the article and check if that works.

 

Thanks to the article, I am now back to being fully operational

 

Hi @UlrikJ , Thank you. Please reach us anytime for further assistance.