Where Is the System Update Readiness Tool?

The System Update Readiness tool creates a log file that captures any issues that the tool found or fixed. The log file is located here: %SYSTEMROOT%\Logs\CBS\CheckSUR.

What is the System Update Readiness Tool?

The System Update Readiness Tool (CheckSUR) is a downloadable utility from Microsoft that can be used to fix a variety of problems related to Windows updates. It does so by scanning files and registry keys associated with updates and replacing corrupt ones with good versions.

How do I run CheckSUR?

CheckSUR should run automatically after it has been installed from Windows Update.
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To manually install and run CheckSUR, follow these steps:
  1. Click Start , click All Programs, click Accessories, right-click Command Prompt, and then click Run as administrator.
  2. In the User Account Control dialog box, click Continue.
Sarah Jenkins

Sarah Jenkins

Senior Technology Editor & AI Specialist

Sarah Jenkins is a veteran tech journalist with over 12 years of experience covering artificial intelligence, mobile innovations, and digital ethics. Her insights have appeared in leading technology publications worldwide.