Windows 8 build 7700

6.1.7700.0.winmain.100122-1900
	Build of Windows 8
OS family	Windows NT
Version number	6.1
Build number	7700
Build revision	0
Architecture	AMD64
Build lab	winmain
Compiled on	2010-01-22
Expiration date
Timebomb	2010-03-01 (+38 days)
SKUs
	Home Basic; Home Premium; Professional; Ultimate; Not available by default:; Starter; Enterprise
About dialog

Windows 8 build 7700 is the earliest available build of Windows 8, which was shared in the AMD64 architecture on 25 December 2019 alongside its server counterpart. Prior to public availability, screenshots of this build were released by Russian Windows news website WZor on 29 January 2010. A screenshot of this build's desktop, Start menu and Explorer was also shared on 3 January 2019.

This build has been determined to be a Windows 8 build due to varying factors such as its relatively high build number, the presence of an early in-development version of Internet Explorer 9 and several non-user-facing changes to the operating system, such as group policy management changes, internal refactors to existing Windows functionalities and changes to the way code generation is handled throughout the build process.

New features and changes[edit | edit source]

Hardware compatibility[edit | edit source]

The Streaming SIMD Extensions (SSE) CPU instruction set is now a requirement in order to boot this build, dropping support for CPUs such as the Pentium II. This is however debatable, as there are no AMD64 CPUs that lack support for this instruction set, although later builds in the x86 architecture require the instruction set as well.

Boot Manager[edit | edit source]

This build's Boot Manager has received the following internal changes:

The default boot screen now supports the 800x600 resolution, causing it to no longer fall back to the Vista boot screen under that resolution;
A new serial boot debugging driver has been added for the Maxim MAX311 series (MAX3110E/MAX3111E/MAX3100/MAX3222E) SPI UART;
Attempting to load an ARM Thumb executable under the wrong architecture will now cause the operating system to return the error code STATUS_INVALID_IMAGE_WIN_32;
An LdrProcessRelocationBlockLongLong instruction has been added that handles architecture-specific relocations for the IA-64, ARMv7, Thumb, Thumb-2, and MIPS architectures.

General[edit | edit source]

This build reverts the default Harmony wallpaper seen in the Windows 7 RTM release to the older placeholder betta fish wallpaper seen in Windows 7 builds from 7032 through 7231. The older Windows 7 Release Candidate EULA is also retained from the aforementioned builds. This may suggest that Windows 8 was forked from a Release Candidate build of Windows 7.

A Windows 8 family search filtering option (along with a filtering option for the Windows 8 operating system) has been added to the Local Group Policy Editor utility, referencing the project's codename.

Release candidate end-user license agreement
Operating system codename reference in Group Policy Manager

Debugging[edit | edit source]

The kd.dll and kdnet.dll libraries have been added to the system, which allow for the operating system to support local and network debugging. The network implementation in this build includes drivers for the Realtek RTL8139 and Intel PRO/1000 network cards, although as a result of it being early in development, it does not implement the encryption key system used in the final iteration of KDNET and hence the default WinDbg network debugging settings (which assume a key to be present) will not be able to connect to this build's debugger.

Subsequently, typing in bcdedit /dbgsettings /? into the Command Prompt will now show instructions on how to set up network or local debugging.

Internet Explorer 9[edit | edit source]

This build includes an extremely early version of Internet Explorer 9, which can be enabled via the application's Developer Tools. Because of its sheer earliness, the browser still identifies itself as Internet Explorer 8, and often fails to load images, regular HTML content, the code for pressing items on websites, and will even crash when loading pages utilizing HTML5.

Internet Explorer (while in IE8 mode)
Internet Explorer 9 browser option
Sample non-HTML5 page while in IE9 mode
Crash after attempting to load HTML5 page
About Internet Explorer

On-Screen Keyboard[edit | edit source]

Various internal changes have been made to the On-Screen Keyboard application, like the introduction of a new "Microsoft On-Screen Keyboard Support Utilities" (osksupport.dll) library, and the removal of the "About the On-Screen Keyboard" link from the keyboard's Options menu.

Removed "About the On-Screen Keyboard" link
Ditto, present in Windows 7 build 7600

System Restore[edit | edit source]

Four new error messages have been added to the System Restore application:

System restore failed to restore a file. This could happen if an anti-virus program is protecting the file. If the failure persists switch off your anti-virus and retry the restore, or perform system restore from Windows Recovery Environment.
System restore failed in delayed file move operation for the file <FILE>.
System restore failed in delayed delete operation for the file <FILE>.
System restore failed in delayed set short filename operation for the file <FILE>.

The "Show more restore points" checkbox has also been removed.

Removed "Show more restore points" button
Ditto, present in Windows 7 build 7600

Miscellaneous[edit | edit source]

Certain functions of the power service have been moved into a new dedicated User-Mode Power Services Extensions library (umpoext.dll).
The full object path is no longer mentioned in assertion strings.
Additional APIs have been added to the Audio and Bluetooth services under the names AudioEndpointBuilder.dll and BluetoothApis.dll respectively.
This builds adds or removes the following libraries/files/exports:

The following libraries/files/exports have been added or removed:

New libraries/files:

dpapi.dll

Added:

CryptProtectDataNoUI
CryptProtectMemory
CryptResetMachineCredentials
CryptUnprotectDataNoUI
CryptUnprotectMemory
CryptUpdateProtectedState
iCryptIdentifyProtection

certca.dll

Added:

CAFindByName
CAFindByCertType
CAFindByIssuerDN
CAEnumFirstCA
CAEnumNextCA
CACreateNewCA
CAUpdateCA
CAUpdateCAEx
CADeleteCA
CADeleteCAEx
CACountCAs
CACloseCA
CAGetCAProperty
CAFreeCAProperty
CASetCAProperty
CAGetCACertificate
CASetCACertificate
CAGetCAExpiration
CASetCAExpiration
CAGetCASecurity
CASetCASecurity
CAAccessCheck
CAAccessCheckEx
CAEnumCertTypesForCA
CAEnumCertTypesForCAEx
CAAddCACertificateType
CAAddCACertificateTypeEx
CARemoveCACertificateType
CARemoveCACertificateTypeEx
CAGetCAFlags
CASetCAFlags
CAGetDN
CAEnumCertTypes
CAEnumCertTypesEx
CAFindCertTypeByName
CACreateCertType
CAUpdateCertType
CAUpdateCertTypeEx
CADeleteCertType
CADeleteCertTypeEx
CACloneCertType
CAEnumNextCertType
CACountCertTypes
CACloseCertType
CAGetCertTypeProperty
CAGetCertTypePropertyEx
CASetCertTypeProperty
CASetCertTypePropertyEx
CADCSetCertTypePropertyEx
CAFreeCertTypeProperty
CAGetCertTypeExtensions
CAGetCertTypeExtensionsEx
CAFreeCertTypeExtensions
CASetCertTypeExtension
CAGetCertTypeKeySpec
CASetCertTypeKeySpec
CAGetCertTypeExpiration
CASetCertTypeExpiration
CAGetCertTypeFlags
CAGetCertTypeFlagsEx
CASetCertTypeFlags
CASetCertTypeFlagsEx
CAInstallDefaultCertType
CAInstallDefaultCertTypeEx
CAIsCertTypeCurrent
CAIsCertTypeCurrentEx
CACertTypeGetSecurity
CACertTypeSetSecurity
CACertTypeAccessCheck
CACertTypeAccessCheckEx
CACertTypeAuthzAccessCheck
CAOIDCreateNew
CAOIDCreateNewEx
CAOIDSetProperty
CAOIDSetPropertyEx
CAOIDAdd
CAOIDAddEx
CAOIDDelete
CAOIDDeleteEx
CAOIDGetProperty
CAOIDGetPropertyEx
CAOIDFreeProperty
CAOIDGetLdapURL
CAOIDFreeLdapURL
CACertTypeRegisterQuery
CACertTypeQuery
CACertTypeUnregisterQuery
CACreateLocalAutoEnrollmentObject
CADeleteLocalAutoEnrollmentObject
CACreateAutoEnrollmentObjectEx

AudioEndpointBuilder.dll

Added:

ServiceMain
SvchostPushServiceGlobals

BluetoothApis.dll

Added:

BluetoothAddressToString
BluetoothDisconnectDevice
BluetoothEnableDiscovery
BluetoothEnableIncomingConnections
BluetoothEnumerateInstalledServices
BluetoothEnumerateInstalledServicesEx
BluetoothEnumerateLocalServices
BluetoothFindBrowseGroupClose
BluetoothFindClassIdClose
BluetoothFindDeviceClose
BluetoothFindFirstBrowseGroup
BluetoothFindFirstClassId
BluetoothFindFirstDevice
BluetoothFindFirstProfileDescriptor
BluetoothFindFirstProtocolDescriptorStack
BluetoothFindFirstProtocolEntry
BluetoothFindFirstRadio
BluetoothFindFirstService
BluetoothFindFirstServiceEx
BluetoothFindNextBrowseGroup
BluetoothFindNextClassId
BluetoothFindNextDevice
BluetoothFindNextProfileDescriptor
BluetoothFindNextProtocolDescriptorStack
BluetoothFindNextProtocolEntry
BluetoothFindNextRadio
BluetoothFindNextService
BluetoothFindProfileDescriptorClose
BluetoothFindProtocolDescriptorStackClose
BluetoothFindProtocolEntryClose
BluetoothFindRadioClose
BluetoothFindServiceClose
BluetoothGetDeviceInfo
BluetoothGetLocalServiceInfo
BluetoothGetRadioInfo
BluetoothGetServicePnpInstance
BluetoothIsConnectable
BluetoothIsDiscoverable
BluetoothIsVersionAvailable
BluetoothRegisterForAuthentication
BluetoothRegisterForAuthenticationEx
BluetoothRemoveDevice
BluetoothSdpEnumAttributes
BluetoothSdpGetAttributeValue
BluetoothSdpGetContainerElementData
BluetoothSdpGetElementData
BluetoothSdpGetString
BluetoothSendAuthenticationResponse
BluetoothSendAuthenticationResponseEx
BluetoothSetLocalServiceInfo
BluetoothSetServiceState
BluetoothSetServiceStateEx
BluetoothUnregisterAuthentication
BluetoothUpdateDeviceRecord
BthpCheckForUnsupportedGuid
BthpEnableAllServices
BthpEnableConnectableAndDiscoverable
BthpFindPnpInfo
BthpInnerRecord
BthpIsBluetoothServiceRunning
BthpIsConnectableByDefault
BthpIsDiscoverableByDefault
BthpMapStatusToErr
BthpNextRecord
BthpSetServiceState
BthpTranspose16Bits
BthpTranspose32Bits
BthpTransposeAndExtendBytes
DllCanUnloadNow
FindNextOpenVCOMPort
InstallIncomingComPort
ShouldForceAuthentication

kd.dll

Added:

KdD0Transition
KdD3Transition
KdDebuggerInitialize0
KdDebuggerInitialize1
KdReceivePacket
KdRestore
KdSave
KdSendPacket

OskSupport.dll

Added:

InitializeOSKSupport
UninitializeOSKSupport

UIAutomationCoreRes.dll

umpoext.dll

Added:

DllMain
ExtensionInit

winmmbase.dll

Added:

CloseDriver
DefDriverProc
DriverCallback
DrvGetModuleHandle
GetDriverModuleHandle
OpenDriver
SendDriverMessage
auxGetDevCapsA
auxGetDevCapsW
auxGetNumDevs
auxGetVolume
auxOutMessage
auxSetVolume
joyConfigChanged
joyGetDevCapsA
joyGetDevCapsW
joyGetNumDevs
joyGetPos
joyGetPosEx
joyGetThreshold
joyReleaseCapture
joySetCapture
joySetThreshold
midiConnect
midiDisconnect
midiInAddBuffer
midiInClose
midiInGetDevCapsA
midiInGetDevCapsW
midiInGetErrorTextA
midiInGetErrorTextW
midiInGetID
midiInGetNumDevs
midiInMessage
midiInOpen
midiInPrepareHeader
midiInReset
midiInStart
midiInStop
midiInUnprepareHeader
midiOutCacheDrumPatches
midiOutCachePatches
midiOutClose
midiOutGetDevCapsA
midiOutGetDevCapsW
midiOutGetErrorTextA
midiOutGetErrorTextW
midiOutGetID
midiOutGetNumDevs
midiOutGetVolume
midiOutLongMsg
midiOutMessage
midiOutOpen
midiOutPrepareHeader
midiOutReset
midiOutSetVolume
midiOutShortMsg
midiOutUnprepareHeader
midiStreamClose
midiStreamOpen
midiStreamOut
midiStreamPause
midiStreamPosition
midiStreamProperty
midiStreamRestart
midiStreamStop
mixerClose
mixerGetControlDetailsA
mixerGetControlDetailsW
mixerGetDevCapsA
mixerGetDevCapsW
mixerGetID
mixerGetLineControlsA
mixerGetLineControlsW
mixerGetLineInfoA
mixerGetLineInfoW
mixerGetNumDevs
mixerMessage
mixerOpen
mixerSetControlDetails
mmDrvInstall
mmGetCurrentTask
mmTaskBlock
mmTaskCreate
mmTaskSignal
mmTaskYield
mmioAdvance
mmioAscend
mmioClose
mmioCreateChunk
mmioDescend
mmioFlush
mmioGetInfo
mmioInstallIOProcA
mmioInstallIOProcW
mmioOpenA
mmioOpenW
mmioRead
mmioRenameA
mmioRenameW
mmioSeek
mmioSendMessage
mmioSetBuffer
mmioSetInfo
mmioStringToFOURCCA
mmioStringToFOURCCW
mmioWrite
waveInAddBuffer
waveInClose
waveInGetDevCapsA
waveInGetDevCapsW
waveInGetErrorTextA
waveInGetErrorTextW
waveInGetID
waveInGetNumDevs
waveInGetPosition
waveInMessage
waveInOpen
waveInPrepareHeader
waveInReset
waveInStart
waveInStop
waveInUnprepareHeader
waveOutBreakLoop
waveOutClose
waveOutGetDevCapsA
waveOutGetDevCapsW
waveOutGetErrorTextA
waveOutGetErrorTextW
waveOutGetID
waveOutGetNumDevs
waveOutGetPitch
waveOutGetPlaybackRate
waveOutGetPosition
waveOutGetVolume
waveOutMessage
waveOutOpen
waveOutPause
waveOutPrepareHeader
waveOutReset
waveOutRestart
waveOutSetPitch
waveOutSetPlaybackRate
waveOutSetVolume
waveOutUnprepareHeader
waveOutWrite

dmvscres.dll

kdnet.dll

Added:

KdD0Transition
KdD3Transition
KdDebuggerInitialize0
KdDebuggerInitialize1
KdReceivePacket
KdRestore
KdSave
KdSendPacket

Removed libraries/files:

corpol.dll

cngaudit.dll

pnpsetup.dll

msswch.dll

Existing libraries/files:

ntdll.dll

Added:

RtlCheckTokenMembership
RtlQueryValidationRunlevel

Removed:

RtlCreateUmsThread
TpDbgGetFreeInfo
TpPoolFreeUnusedNodes

dui70.dll

Added:

?GetElementProviderImpl@XBaby@DirectUI@@UEAAJPEAVInvokeHelper@2@PEAPEAVElementProvider@2@@Z

tquery.dll

Added:

ChangeToInitialDirectory
?GetStackTrace@@YAXPEADK@Z
?GetStackTraceW@@YAXPEAGK@Z
SetInitialDirectory

samlib.dll

Added:

SamChangePasswordUser3
SamiChangePasswordUser3
SamiOemChangePasswordUser2
SamiOemChangePasswordUser2WithTransport

urlmon.dll

Added:

CORPolicyProvider
Ordinal 01CB
Ordinal 01CC
Ordinal 01CD
Ordinal 01CE
Ordinal 01CF

Removed:

Ordinal 00E8

dxgi.dll

Added:

DXGID3D10ETWRundown

mprdim.dll

Added:

SvchostPushServiceGlobals

WSManMigrationPlugin.dll

Removed:

DllMain

iertutil.dll

Added:

Ordinal 0061

Removed:

Ordinal 002F

drmmgrtn.dll

Removed:

DllMain

d3d10warp.dll

Added:

D3D9GetSWInfo

kernel32.dll

Added:

RegCopyTreeW

McxDriv.dll

Removed:

DllMain

ulib.dll

Added:

?PathWasTooBig@PATH@@QEAAEXZ

msrating.dll

Removed:

DllCanUnloadNow
DllGetClassObject

ExplorerFrame.dll

Removed:

Ordinal 006E
Ordinal 006F
Ordinal 0073
Ordinal 0074
Ordinal 0075
Ordinal 0076
Ordinal 0077
Ordinal 0078
Ordinal 0079
Ordinal 007A
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Ordinal 0081
Ordinal 0082
Ordinal 0083
Ordinal 0084
Ordinal 0085

bthpanapi.dll

Added:

BluetoothDuplicateNetworkHandle

ntoskrnl.exe

Added:

InbvDisplayCharacter
InbvEnableDisplayCharacter
MmAllocateNodePagesForMdlEx
ObWaitForMultipleObjects
ObWaitForSingleObject
RtlCreateUserThread
RtlQueryValidationRunlevel
ZwRenameKey

Removed:

IoSetOplockKeyContext

shlwapi.dll

Added:

Ordinal 026B

CscMig.dll

Removed:

DllMain

qmgr.dll

Removed:

??0CNestedImpersonation@@QEAA@PEAX@Z
??0CNestedImpersonation@@QEAA@PEAX_N@Z

TapiMigPlugin.dll

Removed:

DllMain

ieUnatt.exe

Added:

?GetSize@?$CDynamicArray@EPEAUSKey@@@@QEBA_KXZ
?GetSize@?$CDynamicArray@EPEAUSValue@@@@QEBA_KXZ
?GetSizeInBytes@?$CDynamicArray@EPEAE@@QEAA_KXZ

themeui.dll

Removed:

AdvancedSettingSheetHelper
DisplaySaveSettingsEx

icfupgd.dll

Removed:

DllMain

umpo.dll

Added:

PtrUmpoDebug
PtrUmpoHandle
PtrUmpoOnAcPower
PtrUmpoProviderHandle
PtrUmpoSystemPowerRootKey
UmpoAllocate
UmpoAlpcSendPowerMessage
UmpoFree
UmpoInternalAccessCheck
UmpoInternalConvertGuidToString
UmpoInternalDataAccessorToString
UmpoInternalEnumerate
UmpoInternalGetActiveScheme
UmpoInternalGetActiveSchemeGuid
UmpoInternalIsSettingRangeDefined
UmpoInternalOpenGUIDSubKey
UmpoInternalOpenUserPowerKey
UmpoInternalReadFromSystemPowerKey
UmpoInternalReadFromUserPowerKey
UmpoInternalSetActiveScheme
UmpoInternalWriteToUserPowerKey
UmpoNewBroadcast
UmpoNotifyKernelAllPowerPolicyChanged
UmpoTraceAdaptiveDimTimeout

win32spl.dll

Removed:

DllCanUnloadNow
DllGetClassObject
DllRegisterServer
DllUnregisterServer
ProviderEntryW

fundisc.dll

Removed:

DllRegisterServer
DllUnregisterServer

pidgenx.dll

Added:

PidGenX2

user32.dll

Added:

GetLicenseQueryFunction
LicensingCallback
OutputWin32kPowerLog
RefreshTouchSysParams
SetLicenseQueryFunction
UpdateLicensingGlobals

Removed:

Ordinal 0927
Ordinal 0928
Ordinal 0929
Ordinal 092A
Ordinal 092B
Ordinal 092C

IasMigPlugin.dll

Removed:

DllMain

ieframe.dll

Added:

CORLockDownProvider
Ordinal 0144

Removed:

Ordinal 00B0

Display.dll

Added:

DisplaySaveSettingsEx

certcli.dll

Added:

CSPrintAssert
CSPrintError
DbgPrintf
DbgPrintfInit
DbgIsSSActive
myHResultToString
myGetErrorMessageText
myHResultToStringRaw
myFreeColumnDisplayNames
myRobustLdapBind
myIsDelayLoadHResult
myHExceptionCode
myJetHResult
myModifyVirtualRootsAndFileShares
DecodeFileW
EncodeToFileW
myAddShare
DbgLogStringInit
WszToMultiByteIntegerBuf
WszToMultiByteInteger
myGetErrorMessageText1
myGetErrorMessageTextEx
myCAPropGetDisplayName
myCAPropInfoUnmarshal
myCAPropInfoLookup
myRobustLdapBindEx
caTranslateFileTimePeriodToPeriodUnits
myCryptBinaryToString
myCryptBinaryToStringA
myCryptStringToBinary
myCryptStringToBinaryA
myOIDHashOIDToString
myLogExceptionInit
myHExceptionCodePrint
DbgPrintfW
IsASPEnabledInIIS
EnableASPInIIS
IsISAPIExtensionEnabled
EnableISAPIExtension
myGetSidFromDomain
IsASPEnabledInIIS_New
myDoesDSExist@209
mySanitizeName
mySanitizedNameToDSName
mySanitizedNameToShortName
myRevertSanitizeName
myGenerateGuidString
myGenerateGuidSerialNumber
mylstrcmpiL
myHGetLastError
CSPrintErrorLineFile
CSPrintErrorLineFile2
CSPrintErrorLineFileData
CSPrintErrorLineFileData2
CAGetAccessRights
CAIsValid
CAGetCertTypeAccessRights
CAIsCertTypeValid
DbgLogStringInit2
RemoveISAPIExtension
RemoveVDir
SplitConfigString
AddOrRemoveOCSPISAPIExtension
myGetTargetMachineDomainDnsName
myNetLogonUser
CertcliGetDetailedCertcliVersionString
myGetHashAlgorithmOIDInfoFromSignatureAlgorithm
myEnablePrivilege
Ordinal 0156
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Ordinal 01E2
Ordinal 01E3
Ordinal 01E4
Ordinal 01E5
Ordinal 01E6
Ordinal 01E7
Ordinal 01E8
Ordinal 01E9
Ordinal 01EA

Removed:

DllInstall
GetProxyDllInfo
Ordinal 00C9
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Ordinal 00CB
Ordinal 00CC
Ordinal 00CD
Ordinal 00CE
Ordinal 00CF
Ordinal 00D0
Ordinal 00D1
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Ordinal 00D9
Ordinal 00DA
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Ordinal 00E1
Ordinal 00F0
Ordinal 00F2
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Ordinal 00F9
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Ordinal 00FB
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Ordinal 016E
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Ordinal 0173
Ordinal 0175
Ordinal 0177
Ordinal 0186
Ordinal 0187
Ordinal 0188

shunimpl.dll

Added:

Ordinal 01AB
Ordinal 01AC

wdscore.dll

Added:

?GetSize@?$CDynamicArray@EPEAUSKey@@@@QEBA_KXZ
?GetSize@?$CDynamicArray@EPEAUSValue@@@@QEBA_KXZ
?GetSizeInBytes@?$CDynamicArray@EPEAE@@QEAA_KXZ

sstpsvc.dll

Added:

SvchostPushServiceGlobals

cryptui.dll

Added:

CryptProtectData
CryptUnprotectData

Removed:

LocalEnroll
LocalEnrollNoDS
CryptUIWizCertRequest
CryptUIWizCreateCertRequestNoDS
CryptUIWizFreeCertRequestNoDS
CryptUIWizQueryCertRequestNoDS
CryptUIWizSubmitCertRequestNoDS
EnrollmentCOMObjectFactory_getInstance
I_CryptUIProtect
I_CryptUIProtectFailure
RetrievePKCS7FromCA

gpapi.dll

Removed:

Ordinal 0069
Ordinal 006F

dwmapi.dll

Added:

Ordinal 007A
Ordinal 007B

KernelBase.dll

Added:

ClearCommBreak
ClearCommError
ContinueDebugEvent
CreateMemoryResourceNotification
EnumSystemFirmwareTables
EscapeCommFunction
FlushInstructionCache
GetCommConfig
GetCommMask
GetCommModemStatus
GetCommProperties
GetCommState
GetCommTimeouts
GetLargePageMinimum
GetProcessWorkingSetSizeEx
GetSystemFileCacheSize
GetSystemFirmwareTable
GetTempPathW
GetThreadContext
GetThreadTimes
GetVolumeNameForVolumeMountPointW
GetVolumePathNamesForVolumeNameW
InitOnceBeginInitialize
InitOnceComplete
InitOnceExecuteOnce
InitOnceInitialize
InitializeConditionVariable
IsProcessorFeaturePresent
IsThreadAFiber
PurgeComm
QueryMemoryResourceNotification
QueueUserWorkItem
SetCommBreak
SetCommConfig
SetCommMask
SetCommState
SetCommTimeouts
SetComputerNameExW
SetProcessWorkingSetSizeEx
SetSystemFileCacheSize
SetThreadContext
SetupComm
SleepConditionVariableCS
SleepConditionVariableSRW
TransmitCommChar
VirtualLock
VirtualUnlock
WaitCommEvent
WaitForDebugEvent
WakeAllConditionVariable
WakeConditionVariable

Bugs and quirks[edit | edit source]

Installation[edit | edit source]

It is not possible to upgrade to this build without modification due to a ERROR_INVALID_IMAGE_HASH signature validation error. To upgrade to this build, the user must modify the 0x4EFF19F3 offset of the installation .iso file from 0x59 to 0x58 using a Hex Editor, or replace imageres.dll in each index of the install.wim with a copy from build 7746.

Internet Explorer[edit | edit source]

The early version of Internet Explorer 9 found in this build is known to be highly unstable because of its earliness, and will often crash when switching to IE9 mode or while loading a page containing HTML5 content.

Miscellaneous[edit | edit source]

Most of the description strings used in the "System Drivers" section of the System Information app (like the kbdhid, processor, and usbtor strings) are pseudolocalized.