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1、Steps that might help fix Windows Update errors and a blank Windows Features dialog in Windows VistaOver the holidays, I was asked by a friend to look at a problem they were running into on their Windows Vista system. They were unable to connect to Windows Update and check for updates and received a
2、 cryptic error message. After a few minutes of poking around on the system, I recognized a common set of symptoms that I had also seen on a couple of co-workers systems a few weeks prior to that. I also recognized some symptoms that Ive heard about from customers via my blog who had trouble getting
3、the .NET Framework 3.5 to install on Windows Vista due to issues with the .NET Framework 2.0 SP1 and/or .NET Framework 3.0 SP1 OS update packages that it tries to install behind the scenes.Since I had a system available to debug on, I ran through some troubleshooting steps that Ive learned over the
4、past couple of years related to Windows Vista OS update installation issues and identified several specific symptoms, and then eventually came up with a set of steps to fix this system. Then I came back to work after the holidays and tried out the steps on my co-workers systems and found that the sa
5、me basic set of symptoms and resolution steps worked there as well. As a result, Im going to try to summarize these symptoms and the steps I used to resolve them in the hope that they might be helpful to others suffering from the same issues on their systems.Symptoms of this problemIn the systems Iv
6、e been able to find so far with this type of problem, Ive observed a common set of symptoms.Symptom 1: Blank Windows Features dialogGoing to the Programs and Features control panel and then clicking the link on the left labeled Turn Windows features on or off brings up the Windows Features dialog. T
7、his can also be launched directly by running OptionalFeatures.exe. In the error cases Ive seen, the Windows Features dialog appears completely empty instead of listing all of the Windows components that can be enabled or disabled on the system.Symptom 2: Blank list of installed updatesGoing to the P
8、rograms and Features control panel and then clicking the link on the left labeled View installed updates brings up a list of installed service packs, updates and hotfixes for the OS and any applications installed on the OS. In the error cases Ive seen, the list of installed updates was completely em
9、pty, even when I knew for sure that some OS updates had been installed on the system.Symptom 3: Error when attempting to check for updates using Windows UpdateGoing to the Windows Update control panel and choosing the Check for updates link either reports an error message and an HRESULT code (for ex
10、ample, 0x80070005 or 0x80073712) or states that there were no updates available for the system.Symptom 4: Hang or error when attempting to manually download and install OS updatesBypassing the Windows Update control panel by going to the Microsoft support site and directly downloading and attempting
11、 to install a Windows OS update package results in the update hanging and failing to complete installation or the update reporting that it is not applicable on the current OS and exiting without installing.I saw the latter behavior for the .NET Framework 3.5 on systems in this state. On Windows Vist
12、a, the .NET Framework 3.5 attempts to install the .NET Framework 2.0 SP1 OS update package (because the .NET Framework 2.0 is an OS component on Vista). When the systems I observed were in this broken state, the .NET Framework 2.0 SP1 failed to install, and I observed the following error in the .NET
13、 Framework 3.5 or 3.5 SP1 log file named %temp%dd_dotnetfx35install.txt:08/08/08,11:11:11 Microsoft .NET Framework 2.0SP1 (CBS): *ERRORLOG EVENT* : Error: Installation failed for component Microsoft .NET Framework 2.0SP1 (CBS). MSI returned error code 1.Error code 1 from the .NET Framework 2.0 or 3.
14、0 CBS package means that the package is not applicable on the current OS.Steps that might help resolve this problemOn the systems that I have been able to find in this state so far, I have used the following set of steps to get the system back into a working state so that it could display informatio
15、n in the Windows Features dialog, check for updates using Windows Update and successfully install OS updates. I have only been able to work with a few systems in this broken state though, so Im not sure the same set of steps will always work. I wanted to post them here in case there are helpful in s
16、ome cases though, but please keep in mind that your mileage may vary.1. Download the System Update Readiness Tool and save the .msu file to your desktop. You need to make sure to download the correct version of this tool because there is a different version for each OS type and processor architecture. You can find the download links for this tool in this knowledge base article.2. Run the System Update Readiness Tool. Once you download the appropriate .ms
