Windows 7 Unable to install Itunes. An error occurred during the installation of assembly HRESULT:0x800736FD

Look into this folder:

C:\Users\USERNAME\AppData\Local\Temp

do you find a log?

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"A programmer is just a tool which converts caffeine into code" CLIP- Stellvertreter http://www.winvistaside.de/

There are 9 logs in this folder. 

MSI17a4d.LOG

java_install_reg.log

MSI76865.LOG

MSI1513c.LOG

SetupAdmin5E8.log

QTInstallCode.log

MSI1892c.LOG

MSI1892b.LOG

FXSAPIDebugLogFile.txt

MSI1892c.LOG contains:

Error 1935. An error occurred during the installation of assembly 'Microsoft.VC80.CRT,publicKeyToken="1fc8b3b9a1e18e3b",type="win32",version="8.0.50727.762",processorArchitecture="x86"'. Please refer to Help and Support for more information. HRESULT: 0x800736FD. assembly interface: IAssemblyCacheItem, function: Commit, component: {98CB24AD-52FB-DB5F-A01F-C8B3B9A1E18E}

Property(S): UpgradeCode = {5CF0656E-F3B8-11DB-BA81-804E56D89593}

Property(S): bin = C:\Program Files\Common Files\Apple\Mobile Device Support\bin\

Property(S): Frameworks_CFNetwork.framework_Resources = C:\Program Files\Common Files\Apple\Mobile Device Support\Frameworks\CFNetwork.framework\Resources\

Property(S): Frameworks_CFNetwork.framework_Resources_English.lproj = C:\Program Files\Common Files\Apple\Mobile Device Support\Frameworks\CFNetwork.framework\Resources\English.lproj\

Property(S): Frameworks_CoreFoundation.framework_Resources = C:\Program Files\Common Files\Apple\Mobile Device Support\Frameworks\CoreFoundation.framework\Resources\

Property(S): Frameworks_Foundation.framework_Resources = C:\Program Files\Common Files\Apple\Mobile Device Support\Frameworks\Foundation.framework\Resources\

Property(S): Frameworks_GoogleContactSync.framework_Resources = C:\Program Files\Common Files\Apple\Mobile Device Support\Frameworks\GoogleContactSync.framework\Resources\

Property(S): Frameworks_OutlookSyncClientHelper.framework_Resources = C:\Program Files\Common Files\Apple\Mobile Device Support\Frameworks\OutlookSyncClientHelper.framework\Resources\

Property(S): Frameworks_SyncServices.framework_Resources = C:\Program Files\Common Files\Apple\Mobile Device Support\Frameworks\SyncServices.framework\Resources\

Prop

.............................

Property(S): ProductState = -1

Property(S): PackagecodeChanging = 1

Property(S): REBOOT = ReallySuppress

Property(S): CURRENTDIRECTORY = C:\Windows\system32

Property(S): CLIENTUILEVEL = 3

Property(S): MSICLIENTUSESEXTERNALUI = 1

Property(S): CLIENTPROCESSID = 1512

Property(S): VersionDatabase = 300

Property(S): VersionMsi = 5.00

Property(S): WindowsBuild = 7600

Property(S): ServicePackLevel = 0

Property(S): ServicePackLevelMinor = 0

Property(S): MsiNTProductType = 1

Property(S): MsiNTSuitePersonal = 1

Property(S): WindowsFolder = C:\Windows\

Property(S): WindowsVolume = C:\

Property(S): SystemFolder = C:\Windows\system32\

Property(S): System16Folder = C:\Windows\system\

Property(S): RemoteAdminTS = 1

Property(S): TempFolder = C:\Users\dnlhrd\AppData\Local\Temp\

Property(S): ProgramFilesFolder = C:\Program Files\

Property(S): AppDataFolder = C:\Users\dnlhrd\AppData\Roaming\

Property(S): FavoritesFolder = C:\Users\dnlhrd\Favorites\

Property(S): NetHoodFolder = C:\Users\dnlhrd\AppData\Roaming\Microsoft\Windows\Network Shortcuts\

Property(S): PersonalFolder = C:\Users\dnlhrd\Documents\

Property(S): PrintHoodFolder = C:\Users\dnlhrd\AppData\Roaming\Microsoft\Windows\Printer Shortcuts\

Property(S): RecentFolder = C:\Users\dnlhrd\AppData\Roaming\Microsoft\Windows\Recent\

Property(S): SendToFolder = C:\Users\dnlhrd\AppData\Roaming\Microsoft\Windows\SendTo\

Property(S): TemplateFolder = C:\ProgramData\Microsoft\Windows\Templates\

Property(S): LocalAppDataFolder = C:\Users\dnlhrd\AppData\Local\

Property(S): MyPicturesFolder = C:\Users\dnlhrd\Pictures\

Property(S): AdminToolsFolder = C:\ProgramData\Microsoft\Windows\Start Menu\Programs\Administrative Tools\

Property(S): StartupFolder = C:\ProgramData\Microsoft\Windows\Start Menu\Programs\Startup\

Property(S): ProgramMenuFolder = C:\ProgramData\Microsoft\Windows\Start Menu\Programs\

Property(S): StartMenuFolder = C:\ProgramData\Microsoft\Windows\Start Menu\

Property(S): DesktopFolder = C:\Users\Public\Desktop\

Property(S): FontsFolder = C:\Windows\Fonts\

Property(S): GPTSupport = 1

Property(S): OLEAdvtSupport = 1

Property(S): ShellAdvtSupport = 1

Property(S): Intel = 15

Property(S): PhysicalMemory = 1021

Property(S): VirtualMemory = 1098

Property(S): AdminUser = 1

Property(S): MsiTrueAdminUser = 1

Property(S): LogonUser = dnlhrd

Property(S): UserSID = S-1-5-21-2068916181-3193362369-482617669-1001

Property(S): UserLanguageID = 1033

Property(S): ComputerName = DUALCORE

Property(S): SystemLanguageID = 1033

Property(S): ScreenX = 1024

Property(S): ScreenY = 768

Property(S): CaptionHeight = 22

Property(S): BorderTop = 1

Property(S): BorderSide = 1

Property(S): TextHeight = 16

Property(S): TextInternalLeading = 3

Property(S): ColorBits = 32

Property(S): TTCSupport = 1

Property(S): Time = 2:06:08

Property(S): Date = 1/11/2010

Property(S): MsiNetAssemblySupport = 2.0.50727.4927

Property(S): MsiWin32AssemblySupport = 6.1.7600.16385

Property(S): RedirectedDllSupport = 2

Property(S): MsiRunningElevated = 1

Property(S): USERNAME = dnlhrd

Property(S): DATABASE = C:\Windows\Installer\18345.msi

Property(S): OriginalDatabase = C:\Users\dnlhrd\AppData\Local\Temp\IXP556.TMP\AppleMobileDeviceSupport.msi

Property(S): UILevel = 2

Property(S): ACTION = INSTALL

Property(S): ROOTDRIVE = J:\

Property(S): CostingComplete = 1

Property(S): OutOfDiskSpace = 0

Property(S): OutOfNoRbDiskSpace = 0

Property(S): PrimaryVolumeSpaceAvailable = 370778496

Property(S): PrimaryVolumeSpaceRequired = 114579

Property(S): PrimaryVolumeSpaceRemaining = 370663917

Property(S): INSTALLLEVEL = 1

Property(S): PrimaryVolumePath = C:

Property(S): SOURCEDIR = C:\Users\dnlhrd\AppData\Local\Temp\IXP556.TMP\

Property(S): SourcedirProduct = {AADEA55D-C834-4BCB-98A3-4B8D1C18F4EE}

Property(S): ProductToBeRegistered = 1

=== Logging stopped: 1/11/2010  2:06:08 ===

Those ........................................ are me removing some so it would all fit in here.