Windows Vista build 5215 (vbl ndt netxpmobl)

Windows Vista build 5215 is a build of Windows Vista. It was shared onto the BetaWiki Discord server on 25 December 2021.

New features and changes

 * Unlike previous builds and even its server counterpart, the  now has a SKU mention on the bitmap.
 * Peer-to-Peer and Secure Startup applets have been added to Control Panel.
 * Secure Startup was later renamed to BitLocker, but references to the preliminary name survived in the form of internal component names.

File Explorer

 * This is the first build of Windows to include the Previous Versions section in a folder's or file's Properties window.

32-bit EFI support

 * It is one of the few known post-reset builds to support booting from a 32-bit UEFI implementation. This was soon dropped due to low demand from OEMs and didn't reappear until Windows 8.

Upgrade

 * Upgrading from Windows XP may result in the user being unable to log in with the error.

Setup
Although setup is mostly similar to earlier builds of Vista, the setup autorun now mentions Beta 2 in place of Beta 1. The hard drive partitioning page now also has a new advanced option, which hides the latter drive partitioning tools unless clicked on.