Which filesystem does Windows Phone use by default?

Question

do you know what filesystem Windows Phone used by default? Were there differences between the different versions (Windows Phone 7, 8, 7.1 and Windows 10 Mobile)? Is it possible that it is NTFS, just like on Windows 7, 8, 8.1 and 10?

Answer 1

Phone OS	file system	verdict	links
Windows phone 7	IMGFS, TexFAT	Two file systems are supported by Microsoft in Windows Phone 7: IMGFS and TexFAT. IMGFS was already in use by previous versions, and holds the actual system and operating system files. TexFAT is an extended version of the FAT file system capable of addressing files larger than 4GB, and is used to store user files. Microsoft has opted for a unified storage approach, which means that applications and/or users can not distinguish between files in local storage or on a memory card. While this increases simplicity, it also means that crucial files may be stored on a memory card - removing said card will cause the phone to be restricted to making emergency calls only.	https://www.osnews.com/story/23179/the-secrets-of-windows-phone-7/
Windows phone 8.1	NTFS	The internal user store is formatted in NTFS file system format.	https://answers.microsoft.com/en-us/windows/forum/all/which-file-system-for-sd-card-is-better-working-on/fbacafd0-415b-47e2-87d4-bad893d1787b
Windows phone 10	I don't know	Unfortunately there is no information I could find regarding the Windows phone 10	better off asking at https://forum.xda-developers.com/

Notes:

Answer 2

The most detailed information I was able to find on the Windows Phone 10 file system doesn't specify the filesystem, but does have some interesting information on accessing much of it.