win re wim file

I have NOT played with any system files on my Windows 11 PC but have found that under "create a restore point", there is a line that says "WinRETools (Missing)".  It has been there for years in an uncorrupted status and I don't understand why it is now missing. 

it appears I need a file called Winre.wim and that it can be extracted from a Windows 11 ISO file.  I have downloaded 2 ISO files, one in "English (United States)" and one in "English (Great Britain)".  There was also an option for "English (International)".  BUT none of these match the region shown by my Control Panel which says my PC is English (Australia).  Web searches say this language mismatch is a problem and I've posted a separate query to the Community regarding this.

Nevertheless I have proceeded to follow the various instructions on the web / Microsoft website about:

• download a zip extraction software.  
• find install.win within the ISO file, and open it/extract/find the file winre.wim.  BUT this is where I'm stuck - no matter how many times I've tried, there is NO winre.wim file within the ISO file.

It appears that if my PC crashes and I need to recover/rebuild from the ISO file, and I won't be able to because the winre.wim file is missing from my computer's C drive, under Windows\System 32\Recovery.

Help!!