But I won't offer a tutorial on their use. So on with the questions.
1. Does the file get written to?
Should be no but as Windows is never the same from PC to PC I'm writing as-if this is a clean install without any alterations.
What can change is not the file but the date of access since Windows File Explorer will OPEN the file to see if it can make an icon for the file. This icon is kept in another file in said folder but that activity can cause the file dates (of which there are three) to change.
2. Is this only a process in memory.
No. See answer 1.
3. is there data changed.
Given the caveats above, no to the file but yes to the file date and icon datafile.
4. How can I verify?
Use a file comparison tool to compare your test file against the backup copy.
Or use a CRC checksum tool to see if the file content changes.
Or use a file i/o sniffer tool like Process Monitor. Tutorials abound so I won't write one. Example: https://support.veryant.com/support/phpkb/question.php?ID=136
I have my Windows 10 in danish, so I hope, I use the correct terms and names.
When I do the following with an image-file:
Right click on the file, press “change name / rename”, or left double click, so the name gets highlighted, and then left click with the mouse outside of the name-field. No changes made to the filename.
Is this only a process in memory?
Is there data changed / written to the file?
How can I verify / find out?
Thank you for reading and replying