Recommended ntfs permissions for (internal) _data_ drive?

I've installed win 10 on my new SSD, c:
I had a drive in my old computer that has all my data, now d:

I changed the location of my documents/videos/pictures/music/etc to point to the appropriate d:/users/user/directory/ but immediately had permissions problems.

I'm logging in with a hotmail account. That account is now the owner of files/folders on the drive.

When I use a program it invariable cannot save/write new files unless I give the owner modify permissions. This is true for keepass, firefox and photoshop (among the many others I've probably yet to come across)

I always hesitate when I am having to grant permissions so I ask:
Is this normal behaviour for data directories? What should the permissions be?

I want things as safe as reasonably possible.

Did you use the process in File Explorer to change the location of those Folders? I believe there's a Tutorial on this Forum about how to do that. Did you then change preferences/options is the involved programs to point to that new location?

Tip: when mentioning where a file or Folder is located one would use the backslash \\\\ in the path. That is a standard that goes back quite a ways.

d:/users/user/directory/

The forward slash //// is prevalent in URLs/Web addresses.

I'm reluctant to mention NTFS, usually is the formatting of the drive/s and not a program as we know it.

Hi Berton,

To change the location of the folders I went to the default location (e.g., c:\users\me\music), right clicked it, chose the location tab, replaced the existing with the new location on d: It appears to work as far as opening the correct directory (with files) when I click one of the default links in explorer.

Also, I changed the preferences in windows to use "d:"

Also, yes, I changed the preferences in programs to use the new location.

Sorry for the forward slashes ... don't know why I did that, I go back quite a ways too (too much linux lately I guess).

Also, I right clicked the d drive and changed the owner from default (system, I think it was) over to my login user (security>advanced>change owner with checkbox options).

Lastly, applied modify permissions to the drive for that user (instead of these 4: Read&Execute, List Folder Contents, Read, and Write)

I have had similar problems in the past with Win7 and have solved it in a similar way ... even though it made me feel a bit insecure making the blanket permission change.

The drive is primarily data storage: photos and videos I've taken, some music, minimal amounts of documents etc. The exception is that this also contains the 'downloads' directory wherein of course you can fine executables/archives on occasion, which would be executed on install.