Windows 10: Custom Theme broke my new Windows 10 computer

Hello everyone,I am an old woman who is pretty bad with computers in general and I have just gotten myself my first Windows 10 computer after my old one, which had Windows 7 and was 10 years old, died. Not liking the new designs, I thought I was smart enough to download a custom theme to make Windows 10 look "classic" and I downloaded this one.However, while I wanted to drag it into the "Ease of Access Themes" folder, I accidentally clicked on it not used to the new touchpad yet and it installed itself wrongly or something - the file just vanished from the zip-folder. What happened was:1 Th

:)

 

Is there a way to set up a customized theme in Windows 10 like there was in Windows 8.1?

Hi,

Welcome to Microsoft Community.

I understand that you have a question with respect to the theme settings of Windows 10.

Let’s try performing the steps below and check if it helps.

• 
  Press Windows key/Start key
  and type Settings.
  
• 
  Select Settings
  and click on Personalization.
  
• 
  Select Themes, Theme settings
  
• 
  Customize it accordingly.
  

Keep us posted to assist you better.

 

Picture in custom theme disappeared

Unfortunately, I have already tried this. My custom theme (as is true of all the custom themes on my computer), does not have any associated folder. The folders appear to only be listed for actual Microsoft themes.

 

Windows 10 custom theme

So I used to install custom themes for my windows 10 machine and it works perfectly, but this time I installed a theme but it broke, the screen is fully black with a cursor and it keeps showing the lock screen and when I try logging in it returns me to the lock screen.
So how can I fix this ? I've created a restore point before so how can I use it while I cant access the computer ?