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Windows Update

6.5. If the measures above fail to resolve your problem select Start, All Programs, Windows Update, View Update History, double click the failed update and note the Failure Code and Update reference number. An incomplete list of codes with possible ways to obtain a solution is listed here

If you
find the code in the list determine, if you can, whether the error code signifies a failure to download or a failure to install. If the code is not listed search on the error code using Google, last 12 months only, if none of the suggestions below help.

6.6. Failure to download can result from a poor internet connection and / or too much background activity caused by multi-tasking. To improve an internet connection try running
Malwarebyte Free -malware scanning software followed by ADWCleaner.

6.7. Amongst many reasons for failing to install can be interference by the installed anti-virus software. Try a clean boot and manually checking for updates.

6.8. The presence of malware can prevent installation. However good installed security software is, it is never infallible. Checks using alternative security software are recommended.
A scan using Malwarebytes Free can often resolve the problem where the Failure Code is 0x80070005.

6.9. Microsoft provides a
Windows Update troubleshooter. In Windows 7 select Start, Control Panel, Troubleshooting, and under System and Security click Fix problems with Windows Update.

6.10. When dealing with a failed update you should find out what type of update it is. There is a specific Fixit for problems with Net Framework Updates (see paragraph 6.15 later). A Google search on the Knowledge Base reference number will yield a copy of the relevant Knowledge Base Article. Reading the detail in the Article may reveal the reason why the update is failing. For a failing Microsoft Office update try the Repair option.
Select Start , Control Panel, Programs and Features. Place the cursor on Microsoft Office , right click and select Change. Click Repair and Continue. When it completes restart your computer.

6.11. If the troubleshooter fails to resolve the problem download and run the System Update Readiness Tool. For the 32 bit (x86) version of Windows use:
For the 64 bit (x64) version of Windows use:

If you do not know whether your version of Windows is 32 or 64 bit check the summary page of your System Information file (paragraph 7.1). System Type x64-based PC for a 64 bit and x86 for a 32 bit computer. You can only run the System Update Readiness Tool on a Windows 7 computer if the SP1 update is installed.

The System Update Readiness Tool creates  log files that captures any issues that the tool found or fixed. The log file is located at the following location:

The level of expertise needed to diagnose and resolve issues revealed in these logs is such that it will for many users be quicker and easier to reinstall windows.

How to fix errors found in the CheckSUR.log

6.12. If the
System Update Readiness Tool fails to resolve the problem the next step is
run chkdsk. Select Start, All Programs, Accessories, right click Command Prompt, and click Run as administrator from the drop down menu.. Type cd\ and press ENTER. Type "chkdsk c: /r" without the quotes and hit ENTER. Make sure you include the spaces indicated. Enter Y when asked whether you wish to run chkdsk on restarting the computer. Type exit, press the ENTER key and restart the computer. If the utility has to effect repairs you may be seeing signs of a failing disk.

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