Help please with making file write protected and read only.

Hi everyone.
Hope I'm posting in the proper area.

So what I need is to write protect a file on my laptop, so it is not overwritten.

I'm not sure if I just right click it and make sure the file inside the folder is at "read only" does the job.
I need to update my files but don't want this one replaced.
I see the box under "general" tab has to be clicked until the check mark is on.

And ...please help me understand this part, if I do the above, does it matter if I'm logged in as a a "standard user" or admin.

I understands the permission of the admin has full control so just wandering if using "admin" to login it overrides the "standard user" settings when making changes or update to files...the read only still works ?

Thanks so much.

You could convert the document to Adobe pdf format. (keeping the original read/write document separately, in a secure location). Just about everybody has Acrobat Reader installed on their computers these days.

Thanks for posting, I read the links. Appreciate it :)
Hopefully this will get it done for me.
It's a file that if the prog updates, I need to keep it as is so I don't have to keep re-entering
some settings and preferences when it overwrites it. Worth a shot.