Often it happens to install programs and when opening you find an error of missing DLLs (the most common is 0xc00007b), especially in games or graphics programs such as Photoshop.
To solve them, you will need to download the program Dependency Walker for your type of system. To check which one you own, head to Control Panel -> System and security -> System, then read System type.
- Dependency Walker | Download
Then extract the archive using programs such as WinRAR and open the file depends.exe. You will find yourself in front of a gray screen. It's normal. Now click on the folder and browse to find the executable of the program that does not start (to be sure which file is, if you have a shortcut on the Desktop right click on it, then Property and check file path). So, for sure, it will give you mistakes. This should be more or less the screen you'll find yourself:
Now inside the box that is roughly in the middle, go down until the errors finish. Go down again until something red in the CPU is colored. That is the problem. If it is colored red it is x86, then you will have to download the dll file in x64otherwise the opposite. The DLLs can be found here:
In this site, all you have to do is type your DLL in the search bar and download the latest version for the required architecture. Then extract the archive and copy the file to the root folder of your program (or where all the DLLs are); you will probably have to overwrite some old files. In this case it is recommended to make a backup of the old file, simply by copying it to another folder.