Adobe Acrobat Reader is slow or not opening in windows 10

There are two type of this problem.

1. Adobe reader start taking more than 5 minutes to load.
2. Adobe reader not starting and it's showing multiple adobe reader processes in  windows task manager.


The Solution

1. End all adobe reader tasks in task manager.

2. Right click on adobe reader short-cut and set compatibility mode to windows 8.

3. Open adobe reader. Now adobe reader will load without a problem.

4. Go to Edit > Preferences >  Security ( Enhanced ) 

5. Set the compatibility mode  back to normal. 

6. Restart adobe reader.