That is the hope this may be your problem. Check this so see if it is selected
Open word, select page layout, click small arrow on Paragraph, in the spacing area at the bottom there is a check box to turn off spacing between paragraphs. When you create the template and make it the default on...
As I mentioned earlier you may be using a template that is causing this problem if that is the case every document you create with have this undesired result.
IF you are worried it would not hurt to back up the document directory, safety is always the best.
Not needed that is the default for word. You can change it to of own choosing. As an example, I have all my office files in a directory called DATA, then directories for each of these under DATA WORD, EXCEL, MAIL, & POWERPOINT. But documents is fine just a little harder to find what you want.
Open word go to top left click says office button on that. When menu opens bottom says word options click there. Click on save look at default file location that should tell you wear files are saved.
If you have never gone to this area there may be a setting that could solve your problem this...
Find where the files are stored and back them up to a new directory, if you do lose them, you can just copy them to wherever the ne word install puts them
Go to settings > APPS > scroll down to Microsoft office 2007 Click on it select modify add or remove features uninstall word. Repeat process but reinstall this time.
On win10 2007 works fine have it on 2 desktops and 1 laptop.
Backup your word file reinstall and point to whatever you want you want your save file to be copy over done and done
If you have access to another PC, you can go to MS and create a new USB key image. Appears the USB image is corrupted. Also, trysetting the BIOS to default. Does the disc show in BIOS, not in boot options but in the overview page?