How do I restore Automated Help from a Device/thumbdrive?

Also, the reason I need to run this is I am getting a message the battery need service--guess it needs to be replaced but Apple advices running the Automated Help. This is a mid 2010 Macbook.

Well I figured it out so let me give step by step instructions in case anyone else has the same issue whereby you Apple Diagnostics file is missing or corrupted.

First, you need to start terminal and enter the following command, which will make hidden files visible (don't worry you can change it back by giving the same command and substituting "FALSE" for "TRUE" once you are finished):

defaults write com.apple.finder AppleShowAllFiles TRUE

Then go to this site: https://github.com/upekkha/AppleHardwareTest to find the missing or corrupted "

.diagnostics" folder.  As explained there, run EACH of these commands separately to determine the correct model and board number:

sysctl hw.model | awk '{ print $2 }'

ioreg -l | grep board-id | awk -F\" '{ print $4 }'

The first will give you the model of your Mac (in my case, "Macbook 7,1") and the second will give you the board number (in my case, Mac-F22C89C8). With those two identifiers you find your particular Mac product heading in bold on the page ((in my case a MacBook) and click or double click on the matching model and board number combination--this will download the ".diagnostics" folder you need including the complete folder structure (i.e., "System/Library/CoreServices/" in my case). Navigate to the ".diagnostics" folder and copy it to the corresponding folder on your Mac (i.e., "System/Library/CoreServices/") in my case. Then follow the instructions here: Using Apple Diagnostics - Apple Support.

Well I for some reason can't exit my previous post (probably need a certain number) so there are are no breaks and makes it more difficult to understand.

Thanks for the reply. Yes--I understood where I needed to copy the .diagnostics folder just didn't know how to do it when it was hidden.

I would also add that running the automated hardware test solved my battery problem. I had a "Service Battery" message and it seemed to be draining quickly but after running the extensive hardware test the problem was gone. Not sure if I should start a new threat with that title so other folks can benefit?

Thanks Eric