InDesign CC 14.0.2 - Slow Performance & Crashes Constantly On Windows 10

You did not mention trashing your InDesign preferences. Given that it is a new computer it is unlikely that corrupt preferences could be causing your issues but it is certainly worth a try.

To do so on a PC:

You can try the quick way of resetting on a PC which is to hold down Ctrl + Alt + Shift when launching InDesign and respond affirmatively when asked if you want to reset. There have been some recent reports that the window asking if you want to reset is not popping up but that the prefs are being reset anyway. If this works great but if it doesn’t you may have to manually delete them.

To do so:

On Windows 7 and above the preference files are hidden. To find them go to the Control Panel and open Folder Options and then click the View tab. Then select “Show hidden files and folders” or “Show hidden files, folders or drive options” in Advanced Settings. Then delete (or rename) the folder at the end of this path: C:\Users\<USER>\AppData\Roaming\Adobe\InDesign\<Version #>\<Language>. Make sure that InDesign is closed when you do this. When you relaunch the program it will create  new preference files and the program will be at its default settings.

The advantage of manually deleting preference files is that after you’ve reset up the program (make sure that no document window is open) to your liking, you can create copies of your personalized “mint” preference files (make sure that you quit the program before copying them—that finalizes your customization) and use them in the future to replace any corrupt versions you may need to delete.

Do you have any third party plug-ins installed (either for InDesign or your operating system). If so disable them and see if it helps. I know that you said that you'd tried working with all other programs closed but that may not have included plug-ins.

Also try substituting fonts that came with the system for the fonts that you are using to see if a corrupt font or multiple corrupt fonts could be your problem.

Finally, please understand that what you are experiencing is not something that is being widely reported by users so assuming that it is the result of bad software is short sighted. Despite your machine being brand new the possibility exists that there is something wrong with your computer. You can try contacting Adobe Customer Care Contact Customer Care . They can run a diagnostic on your machine and possibly see what the problem is. You also might want to contact Microsoft.