Custom Run Command

Create your own Run Command 
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Step 1: Go to “Start,” “Run,”  and type regedit.

Step 2: Navigate to the following:

HKEY_LOCAL_MACHINE\SOFTWARE\Microsoft\Windows\CurrentVersion\Apps Path

Step 3: Create a new folder/key under Apps Path. (Right-Click Apps Path and click “New,” “Key.”)

Step 4: Title the new folder/key the name of the application, e.g. firefox.exe.

Step 5: Right-Click the default string value and click Modify.

Step 6: Change the value to the path of the executable you are attempting to run. E.g. C:\Program Files\Mozilla Firefox\firefox.exe.

Step 7: Create a new “String Value” by right-clicking under the default value  and select “New,” “String Value.” Name it Path and enter the value as the same path you previously entered.

Step 8: Done! Now, all you need to do is go to “Start,” “Run,” and type the name of your command!

(I haven't tested it yet, if u guys find any probs, pls comment)