Windows update error code 800B0100 I CAN NOT update. Please assist. Have tried several times, following various windows troubleshooting instructions.

Hello, try that: http://www.instantvista.com/800B0100.html If this does help then: Run chkdsk /r /f and sfc /scannow Download and install System Update Readiness tool for your OS Disable all security softwares Reset Windows Update Components If this does not help, perform a repair install of your OS. This posting is provided "AS IS" with no warranties or guarantees , and confers no rights. Microsoft Student Partner 2010 / 2011 Microsoft Certified Professional Microsoft Certified Systems Administrator: Security Microsoft Certified Systems Engineer: Security Microsoft Certified Technology Specialist: Windows Server 2008 Active Directory, Configuration Microsoft Certified Technology Specialist: Windows Server 2008 Network Infrastructure, Configuration Microsoft Certified Technology Specialist: Windows Server 2008 Applications Infrastructure, Configuration Microsoft Certified Technology Specialist: Windows 7, Configuring Microsoft Certified IT Professional: Enterprise Administrator Microsoft Certified IT Professional: Server Administrator

Hi Mr. X I am a total techno buffooon.....I can't even believe I managed to register for this help location. I am in the middle of a remote spot on Prince Edward Island with my new ASUS notebook...I will try to make sense of the steps you've given me, but in the end, don't know what OS stands for...nore do I know if I have windows vista...how does one tell? Thanks for your efforts! Will go and work on the probem now. K.Kathleen Moors

What is this? Run chkdsk /r /f and sfc /scannow I'm skipping option one because it isn't free. ;0) Kathleen Moors

Hi Mr X, I was about to post an "Ask a Question" with screenshots re: a couple of failed updates earlier, when I saw this thread. :) --The text follows-- Hi, on my Vista 32bit Laptop - update (KB2539636) failed. I've tried installing it normally, and then with everything I could turn off easily; stopped - also failed. I tried in Safe Mode with Networking - but couldn't get Windows Update running there.. The update is: (KB2539636). Security update for Microsoft .NET Framework 4 on Windows XP, Windows Server 2003, Windows Vista, Windows 7, Windows Server 2008 x86. Also, after hiding update (KB2539636) - then update (KB2468871) failed too.. btw. Both have already installed succesfully on a Win7 32bit system however. (haven't tried the 64bit yet.) ------------------ So instead I'll go look into using the readiness tool first. (I already know SFC reports unfixable errors from long ago I still need to figure out how to resolve. :\) Thanks for your suggestions, Regards, pknIf my post was helpful - give it a Vote. If it helps solve your problem - propose it as Answer. ;-)

Hello, Execute the suggested command to check files that could not be repaired after running sfc /scannow: http://support.microsoft.com/kb/929833 Performing a repair install of your OS (In-Place upgrade) should solve that if there is no way to repair them. This posting is provided "AS IS" with no warranties or guarantees , and confers no rights. Microsoft Student Partner 2010 / 2011 Microsoft Certified Professional Microsoft Certified Systems Administrator: Security Microsoft Certified Systems Engineer: Security Microsoft Certified Technology Specialist: Windows Server 2008 Active Directory, Configuration Microsoft Certified Technology Specialist: Windows Server 2008 Network Infrastructure, Configuration Microsoft Certified Technology Specialist: Windows Server 2008 Applications Infrastructure, Configuration Microsoft Certified Technology Specialist: Windows 7, Configuring Microsoft Certified IT Professional: Enterprise Administrator Microsoft Certified IT Professional: Server Administrator

Hi Mr X, thanks for your reply. I've tried so far with the 'panmap.dll' in %windir%\system32 - didn't seem to fix it, (but there's only one file available for me to copy from winsxs). Can I copy it from my win7 32bit? as it appears to be indentical in size there? tho version/timestamp differs. A 2nd missing file is msiexec.exe - there's 3 different copies in winsxs so I may have more luck finding a suitable replacement for this one. the 3rd file: msiexec.exe.mui only seems to be in winsxs so I'm not sure where I need to copy it TO. :) will review cbs.log again for clues. So an 'In-Place Upgrade' might be required yet to fix these 3 then perhaps. Regards, pknIf my post was helpful - give it a Vote. If it helps solve your problem - propose it as Answer. ;-)

Files in WinSxS are usually hardlinked files. A hard link is a filename. Every file has at least one hard link. Files in system32 and files in WinSxS are usually hardlinks to the same file. Therefore copying won't help. -- .. -- "pkn2011" wrote in message news:5535d98e-ec3f-4d85-bd6f-b71cbb68c641... > Hi Mr X, thanks for your reply. > > I've tried so far with the 'panmap.dll' in %windir%\system32 - didn't seem > to fix it, (but there's only one file available for me to copy from > winsxs). Can I copy it from my win7 32bit? as it appears to be indentical > in size there? tho version/timestamp differs. > > A 2nd missing file is msiexec.exe - there's 3 different copies in winsxs > so I may have more luck finding a suitable replacement for this one. > > the 3rd file: msiexec.exe.mui only seems to be in winsxs so I'm not sure > where I need to copy it TO. :) will review cbs.log again for clues. > > So an 'In-Place Upgrade' might be required yet to fix these 3 then > perhaps. > > > > Regards, pkn > > > -------------------------------------------------------------------------------- > If my post was helpful - give it a Vote. If it helps solve your problem - > propose it as Answer. ;-)

did all the suggested stuff above plus much more kb2539636 failed for me also I manually installed dotnet4 client then downloaded the manual install for kb2539636. kb2468871 and kb2533523 also were failing I also manually installed them update how shows no updates available easy way to get to updates view update history; right failed line ; view detail; click more information link

Hi AZ, you said.. "kb2539636 failed for me also " " I manually installed dotnet4 client" :( my system corrupted - and then died - before I could get that far unfortunately.. Oh well. Thems the breaks. pknIf my post was helpful - give it a Vote. If it helps solve your problem - propose it as Answer. ;-)

Hi David, you wrote.. "Files in WinSxS are usually hardlinked files. A hard link is a filename. Every file has at least one hard link. Files in system32 and files in WinSxS are usually hardlinks to the same file. Therefore copying won't help." If I was planning on overwriting a file - for example in: > I've tried so far with the 'panmap.dll' in %windir%\system32 - didn't seem > to fix it, (but there's only one file available for me to copy from > winsxs). Can I copy it from my win7 32bit? as it appears to be indentical > in size there? tho version/timestamp differs. > Is it better to overwrite the one in winsxs or the link in system32? Regards, pknIf my post was helpful - give it a Vote. If it helps solve your problem - propose it as Answer. ;-)

Copy over the system32 one. With minor exceptions windows looks to the system32 folder to load files. -- .. -- "pkn2011" wrote in message news:8376cda0-a7ee-4305-9149-63a2f1a7367d... > Hi David, you wrote.. > > "Files in WinSxS are usually hardlinked files. A hard link is a filename. > Every file has at least one hard link. Files in system32 and files in > WinSxS > are usually hardlinks to the same file. Therefore copying won't help." > > > If I was planning on overwriting a file - for example in: > >> I've tried so far with the 'panmap.dll' in %windir%\system32 - didn't >> seem >> to fix it, (but there's only one file available for me to copy from >> winsxs). Can I copy it from my win7 32bit? as it appears to be indentical >> in size there? tho version/timestamp differs. >> > Is it better to overwrite the one in winsxs or the link in system32? > > Regards, pkn > > > -------------------------------------------------------------------------------- > If my post was helpful - give it a Vote. If it helps solve your problem - > propose it as Answer. ;-)

Hi David, you said. "Copy over the system32 one. With minor exceptions windows looks to the system32 folder to load files." Thanks again. Will give it a try soon, now my Laptop is 'working' again.. (touch wood as they say.) I even managed to get all those updates installed - that I'd mentioned had failed previously. :) Regards, pknIf my post was helpful - give it a Vote. If it helps solve your problem - propose it as Answer. ;-)

To give yourself permissions to copy over the file Click Start - All Programs - Accessories - Right click Command Prompt and choose Run As Administrator. Type takeown /f c:\windows\system32\panmap.dll /a icacls c:\windows\system32\panmap.dll /grant Administrators:f If the file is in use when you try to copy it. Rename the old file, copy the new one in. Reboot and delete the renamed old one. You could type in the command prompt (assuming the new panmap.dll is in the root of drive C:) ren c:\windows\system32\panmap.dll c:\windows\system32\panmap.old copy c:\panmap.dll c:\windows\system32\panmap.dll -- .. -- "pkn2011" wrote in message news:8376cda0-a7ee-4305-9149-63a2f1a7367d... > Hi David, you wrote.. > > "Files in WinSxS are usually hardlinked files. A hard link is a filename. > Every file has at least one hard link. Files in system32 and files in > WinSxS > are usually hardlinks to the same file. Therefore copying won't help." > > > If I was planning on overwriting a file - for example in: > >> I've tried so far with the 'panmap.dll' in %windir%\system32 - didn't >> seem >> to fix it, (but there's only one file available for me to copy from >> winsxs). Can I copy it from my win7 32bit? as it appears to be indentical >> in size there? tho version/timestamp differs. >> > Is it better to overwrite the one in winsxs or the link in system32? > > Regards, pkn > > > -------------------------------------------------------------------------------- > If my post was helpful - give it a Vote. If it helps solve your problem - > propose it as Answer. ;-)

Hi David, you said.. "(assuming the new panmap.dll is in the root of drive C:)" I copied it into the system32 folder directly to simplify path (renamed as panmap.new of course :) but thereafter followed your instructions Aok - so just waiting for SFC to verify I've only 2 missing files now hopefully! Also copied msiexec.exe over to Laptop in readiness. will re-check original file specs and then repeat same steps for this one next too.. Many thanks, pkn 2011-08-26 00:08:31, Info CSI 000001e1 [SR] Cannot repair member file [l:20{10}]"panmap.dll" of Microsoft-Windows-panmap, Version = 6.0.6000.16386, pA = PROCESSOR_ARCHITECTURE_INTEL (0), Culture neutral, VersionScope = 1 nonSxS, PublicKeyToken = {l:8 b:31bf3856ad364e35}, Type neutral, TypeName neutral, PublicKey neutral in the store, file is missing

Good. -- .. -- "pkn2011" wrote in message news:cbe8359d-40e4-4b14-ac58-c8f06a44854e... > Hi David, you said.. "(assuming the new panmap.dll is in the root of drive > C:)" > > I copied it into the system32 folder directly to simplify path (renamed as > panmap.new of course :) but thereafter followed your instructions Aok - so > just waiting for SFC to verify I've only 2 missing files now hopefully! > > Also copied msiexec.exe over to Laptop in readiness. will re-check > original file specs and then repeat same steps for this one next too.. > > Many thanks, pkn > > > -------------------------------------------------------------------------------- > 2011-08-26 00:08:31, Info CSI 000001e1 [SR] Cannot > repair member file [l:20{10}]"panmap.dll" of Microsoft-Windows-panmap, > Version = 6.0.6000.16386, pA = PROCESSOR_ARCHITECTURE_INTEL (0), Culture > neutral, VersionScope = 1 nonSxS, PublicKeyToken = {l:8 > b:31bf3856ad364e35}, Type neutral, TypeName neutral, PublicKey neutral in > the store, file is missing

Hi Again, Re: 'PublicKey neutral in the store, file is missing' The file isn't in the Store though still? so the original error continues.. With a valid file in System32 perhaps I can just delete the related store path for the old version that's missing? Is quite confusing how this winsxs/system32 hardlink idea works in practice.. Regards, pknIf my post was helpful - give it a Vote. If it helps solve your problem - propose it as Answer. ;-)

Have you tried this. http://support.microsoft.com/kb/947821 Windows update is involved in WinSxS. -- .. -- "pkn2011" wrote in message news:b01d622b-b999-4ba0-8e2d-4e5e7e7b7205... > Hi Again, Re: 'PublicKey neutral in the store, file is missing' > > > > The file isn't in the Store though still? so the original error > continues.. > > With a valid file in System32 perhaps I can just delete the related store > path for the old version that's missing? > > > > Is quite confusing how this winsxs/system32 hardlink idea works in > practice.. > > Regards, pkn > > > -------------------------------------------------------------------------------- > If my post was helpful - give it a Vote. If it helps solve your problem - > propose it as Answer. ;-)

Hi David, you wrote.. " Have you tried this. http://support.microsoft.com/kb/947821 Windows update is involved in WinSxS. " Ahh, I was getting to that point prior to the Laptop deciding to corrupt itself and fail. I just looked back up and MrX and Magon have some links also I was planning to follow too. Downloading the x86 version of the readiness tool for Vista on the Laptop now.. Thanks, pknIf my post was helpful - give it a Vote. If it helps solve your problem - propose it as Answer. ;-)