Windows Longhorn build 4085 (Lab07 N)

Windows Longhorn build 4085 (Lab07_N) is a Milestone 8 build of Windows Longhorn. On 23 January 2020, this build was listed on a thread by UX.Unleaked blog founder Grabberslasher to be released to the BetaArchive FTP, and was later released in the fifth set of their 33 Longhorn/Vista builds on 28 January 2020, alongside build 4050 (idx02).https://www.betaarchive.com/forum/viewtopic.php?t=40726
== Fixes ==
* Scheduled Tasks folder is named again in the Control Panel, however it is not functional until build 4086.
== Bugs and quirks ==
=== Installation ===
* Due to the later componentized builds, it tends to take a long time to install and can be unstable.
* Various commands in WinPE's command prompt such as formatting a drive will not work due to VSSAPI.DLL being missing.
====Upgrade====
Attempting to upgrade from other builds is not possible as one of two outcomes may occur: 
#A bugcheck with error code 0x7E after the second reboot. This is commonly observed when trying to upgrade from non-componentized builds, such as 4074 (via a registry tweak that reports it as a componentized build).
#An error during the file copy phase.
==== WinPE ====
* The mouse driver in this build's WinPE does not function on specific hardware configurations or hypervisors, and may require a keyboard to navigate through the installation procedure. This issue appears to be largely related to using a PS/2 mouse, as most ordinary USB mice appear to function properly in setup.
=== Timebomb ===
Unlike other Longhorn builds, it contains a broken timebomb and can be installed on the current date.
=== WordPad ===
WordPad does not start, as it will display Failed to create empty document instead.
=== Outlook Express ===
Outlook Express does not start due to registry errors and certain dependencies on WinFS.
=== Themes ===
The Windows Classic style cannot be applied as there are no color schemes defined in the registry. Apply the following registry key to fix this problem:
=== Explorer ===
* CD, DVD and floppy drives appear and behave like local disks.
**As a result of this, the system continuously throws out notifications about low disk space.
* Help and Support crashes Explorer.
* Explorer will crash after adding the display tile in sidebar and won't launch again. A workaround is to create a new account via Command Prompt.
=== Control Panel ===
* Hardware and Devices folder does not open.
* By default, the Phone and Modem Options Control Panel applet name is empty.
* Computer Management displays script errors due to missing registry entries.
=== Graphics ===
Enable VGA Mode after installing video drivers or the system will bugcheck with error code 0x000000B4.
=== Windows Product Activation ===
The Windows Product Activation component is missing due to the componentization. An incomplete rewritten one in .NET-managed code and Avalon would be reintroduced in build 4093.
=== Safe mode ===
The Safe mode is completely broken and results in a bugcheck with code 0x0000007B. This is because the Safeboot key, located in HKEY_LOCAL_MACHINE\SYSTEM\CurrentControlSet\Control is largely incomplete and missing a lot of entries. Restoring the key from an earlier build with working safe mode allows this build to boot properly, but the video driver will not initialize properly. As a result, the operating system will freeze as it transitions into graphical mode, so Safe Mode is currently not known to work on these pre-reset Longhorn componentized builds.
== Gallery ==
Longhorn40424093Boot.png|Boot screen
4093 BSOD.png|System crash (usually appears after attempting to load Safe Mode)
SafeLonghorn.PNG|Safe to shutdown screen
== References ==
Category:Windows Longhorn builds