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'{{DISPLAYTITLE:Windows Longhorn build 4085 (Lab07_N)}} {{Infobox Windows build |build of = [[Windows Longhorn]] |buildtag = 6.0.4085.Lab07_N.040609-2350 |family = nt |version = 6.0 |build = 4085 |lab = Lab07_N |revision = |image = Longhorn4085Desktop.png |arch = x86 |winver = Longhorn4085Winver.png |sku = Professional |compiled = 2004-06-09 |timebomb = 2004-12-06 |key = TCP8W-T8PQJ-WWRRH-QH76C-99FBW |rivals = {{Rivals|TCB=http://www.thecollectionbook.info/windows/vista/4864}} }} '''Windows Longhorn build 4085 (Lab07_N)''' is a Milestone 7 build of [[Windows Vista|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 [[Windows Longhorn build 4050 (idx02)|build 4050 (idx02)]].<ref>https://www.betaarchive.com/forum/viewtopic.php?t=40726</ref> == Fixes == * Scheduled Tasks folder is named again in the [[Control Panel]], however it is not functional until [[Windows Longhorn build 4086 (main)|build 4086]]. == Bugs and quirks == === Installation === * As typical of builds in this build range, 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 <code>VSSAPI.DLL</code> being missing. ====Upgrade==== Attempting to upgrade from other builds is not possible as one of two outcomes may occur: #A [[Blue screen of death|bugcheck]] with error code <code>0x7E</code> 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 [[Windows Vista|Longhorn]] builds, it contains a broken [[timebomb]] and can be installed on the current date. === [[WordPad]] === [[WordPad]] does not start, as it will display <code>Failed to create empty document</code> 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. This can be fixed by using a [https://archive.org/details/classic-theme-fix-for-longhorn-408x-builds registry modification]. === 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. * When the [[Windows Aero|Aero]] taskbar and sidebar are enabled, the Taskbar erroneously uses the Sidebar background. === 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 <code>0x000000B4</code>. === 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 [[Windows Longhorn build 4093 (main)|build 4093]]. === Safe mode === The [[Safe mode]] is completely broken and results in a bugcheck with code <code>0x0000007B</code>. This is because the <code>Safeboot</code> key, located in <code>HKEY_LOCAL_MACHINE\SYSTEM\CurrentControlSet\Control</code> 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 == <gallery> Longhorn40424093Boot.png|Boot screen 4093 BSOD.png|System crash (usually appears after attempting to load Safe Mode) SafeLonghorn.PNG|Safe to shutdown screen </gallery> == References == {{reflist}} [[Category:Windows Longhorn builds]]'