You said, "I guess I didn't phrased it well. Okay.
For any version of Windows, there should be a search bar of some kind and search cmd on it. Next, you should see a black box coming up. Key in the entire string there. E.g., for windows 10, http://winaero.com/blog/how-to-open-elevated-command-prompt-in-windows-10/. Otherwise, go to all programs and then accessories if you're using windows 7 and below and press command prompt.
Open the file manager (the window you get when you click on a folder) and key in %appdata%/Bitcoin and you should see a debug.log file. Open it or use any text editor, e.g. notepad and copy out the text inside."

I know about the Google search bar; I've used it thousands of times.   I enter the text    cmd    on it, and click on the magnifying glass (search) icon.  The result?  Google search reports there are 183,000,000 search results.

Once I do that, I don't see "a black box coming up".  So I cannot proceed further.

Well, I tried putting "C:\Program Files\Bitcoin\Bitcoin-qt.exe" -reindex   into a 'search box'.  I got back a Google Search set of results.

Then, it occurred to me that I don't know what you meant by "search for cmd and enter"

Then, I decided to put   %appdata%/Bitcoin   into a search box and looked for it.   Nothing useful happened.

Then, I realized I also don't know what you meant by "After entering the folder, you should see debug.log and you can open it with any text editor. Pasting the last few lines should be enough."

Hey, I can't even find the DIRECTORY where my bitcoin stuff is!    Let alone my debug log!!  And for a moment, I couldn't even see any way to reply to these messages.  Then I tried to relogin again.  <GRRRRR>  Microsoft sucks.

Okay, I finally found the directory where the Bitcoin stuff is.  But I don't know where the debug log is.  And I don't know how to replace the text in
 "Path/To/Location/bitcoin-qt" -reindex
with the system-specific detail.   Question:  is "program files" a proper directory name?  Where do I present the modified text shown above?  Windows ISN'T transparent.

I tried to set up a new wallet, but I got the message after about 20 minutes of running:
    "Bitcoin Error
     Error:  A fatal internal error occurred, see debug.log for details."

Does not give me much confidence!

Then, I tried uninstalling Bitcoin Core; Reinstalled it.  Then ran it, but the same error message occurred, this time immediately.

I had a BTC wallet which was on a computer which had a hard-drive crash about 1.5 years ago. (fortunately, it was backed up, I think, on an external backup drive.) I believe it was a QT wallet.  I need to know how to restore it.  Do I initialize a new wallet, with a new password?  Then, how do I transfer the BTC to the new wallet?  What files from the backup do I need? I know I'll need the password, which I have.