Windows Server build 25246

10.0.25246.1001.rs_prerelease.221111-1529
Build of Copper
10.0.25246.1001.rs_prerelease.221111-1529
OS family
ArchitectureAMD64
Compiled2022-11-11
Timebomb2023-09-15 (+308 days)
Works in
About
WindowsServerCopper-10.0.25246.1001-Winver.webp
TCB.png

Windows Server build 25246 is the eighteenth Insider Preview build of Windows Server based on the Copper codebase. It was released to Windows Insiders on 16 November 2022.

Editions and keys[edit | edit source]

Edition / SKU Key
Standard Server MFY9F-XBN2F-TYFMP-CCV49-RMYVH
Datacenter Server 2KNJJ-33Y9H-2GXGX-KMQWH-G6H67

New features and changes[edit | edit source]

Taskbar[edit | edit source]

  • The ability to display seconds in the system clock on the taskbar, which had been absent since the original release of Windows 11, has been re-implemented. This feature is disabled by default, but can be toggled on manually by enabling the 41314201 velocity ID and then toggling the switch under Personalization > Taskbar in the Settings app.
  • The ability to prevent taskbar application icons from combining, which had been absent since the original release of Windows 11, has been partially re-implemented.
    • Although this feature is supposed to be enabled by enabling the 29785186 velocity ID, it is inaccessible.
  • A new animation for the hidden icons chevron has been added.

Boot environment[edit | edit source]

The entire boot environment was built with BOOTENV_MEMORY_CHECK defined (previously only defined in checked builds). On entry and exit of every bootlib API call, all physical memory chunks and heap chunks are checked for corruption. (With an undocumented BCD element 0x1500008E, the frequency of checks can be decreased; however it defaults to zero, thus always checking.)

Bugs and quirks[edit | edit source]

The App Compatibility FOD may fail to install on Server Core post reboot with error message "Something didn't go as planned. No need to worry-undoing changes. Please keep your computer on."

External links[edit | edit source]