Skip to content

CheckSUR: Repairing Windows Update

April 30, 2013

Various system resource such as the registry, file data etc can become corrupt and cause problems in the Windows Servicing Store which then makes Windows Update fail. The System Update Readiness Tool or CheckSUR can fix this.

How to run CheckSUR

Windows 8:

Press Windows key + C and type cmd in the search box.

Right click Command Prompt and select Run as Administrator

In the Command Prompt that opens, run the following commands:

1. DISM.exe /Online /Cleanup-image /Scanhealth

2. DISM.exe /Online /Cleanup-image /Restorehealth

When they have finished, type Exit and press Enter and the command prompt will close.

Re-run Windows Update

Windows Vista, Windows 7, Windows Server 2008 & Windows Server 2008 R2

Use this link and download/run the appropriate tool for you operating system

The tool verifies what is in the following directories and replaces any files that aren’t correct.



It also reads through the following registry keys and checks their health, and resets them to defaults if any have been changed



HKEY_LOCAL_MACHINE\Software\Microsoft\Windows\CurrentVersion\Component Based Servicing

Any errors/fixes will be logged in the log file which is located %systemroot%\Logs\CBS\CBS.log


Leave a Comment

Leave a Reply

Fill in your details below or click an icon to log in: Logo

You are commenting using your account. Log Out /  Change )

Google+ photo

You are commenting using your Google+ account. Log Out /  Change )

Twitter picture

You are commenting using your Twitter account. Log Out /  Change )

Facebook photo

You are commenting using your Facebook account. Log Out /  Change )


Connecting to %s

%d bloggers like this: