Windows 8 build 7801

6.1.7801.0.fbl_grfx_dev1.100818-1700
	Build of Windows 8
OS family	Windows NT
Version number	6.1
Build number	7801
Build revision	0
Architecture	x64
Build lab	fbl_grfx_dev1
Compiled on	2010-08-18
Expiration date
Timebomb	2011-02-05 (+171 days)
About dialog

Windows 8 build 7801 is a build of Windows 8, which was shared on 12 October 2024 along with its server counterpart and build 7821 from its server counterpart.

Editions and keys[edit | edit source]

Edition / SKU	Key
Home Basic	YGFVB-QTFXQ-3H233-PTWTJ-YRYRV
Home Premium	RHPQ2-RMFJH-74XYM-BH4JX-XM76F
Professional	HYF8J-CVRMY-CM74G-RPHKF-PW487
Ultimate	D4F6K-QK3RD-TMVMJ-BBMRX-3MBMV

New features and changes[edit | edit source]

Setup[edit | edit source]

This is the first build to contain a new setup assistant. It is stored on the root of the installation media as setupclient.exe alongside with the older client. Unlike its predecessor, instead of requesting Product Key in OOBE, it instead requests a product key in the Setup instead and installation type but does not cover the entire desktop with a wallpaper. The modern setup assistant would eventually replace the legacy client in later builds; however, the aforementioned legacy client can still be accessed by booting off of the installation media or launching the setup.exe executable in the sources folder.

After the first reboot when upgrading to this build using the new setup assistant, the system will boot into the next stage with the text Preparing the new system.

Control Panel[edit | edit source]

System Reset (sysreset.exe) has been added, which can be accessed from the Recovery applet.

File Copy dialog[edit | edit source]

This build contains an early version of the redesigned File Copy dialog, although it's disabled by default. To enable it, merge the following registry key:

[HKCR\CLSID\{3f97e701-2fad-40b5-90fc-77ca1a723a3a}]
"AppID"="{8F09011C-9A2A-4BBD-A04F-FF1C635DBCA3}"

Redpill[edit | edit source]

Lock screen[edit | edit source]

The lock screen can now be personalized. The user can choose to sync the current wallpaper to the lock screen from the wallpaper chooser page in Control Panel..

Bugs and quirks[edit | edit source]

USB 3.0/xHCI[edit | edit source]

This build includes a non-functional xHCI driver and will not boot if USB 3.0 or later is enabled. Disabling USB 3.0 from the VM configuration (or through the physical machine's BIOS/UEFI firmware) will allow the build to boot normally.

Help and Support Center[edit | edit source]

Help and Support Center displays a placeholder page which states that a rework of the application is underway, instead redirecting the user to online help hosted on the official Windows website whilst advising Microsoft employees to not file bugs about the current state of the application.