- Home users:
Skip the details: Download the updates for your home computer or laptop from the Microsoft Update website now:
- IT professionals:
How to obtain help and support for this security update
Help installing updates:
Support for Microsoft Update
Security solutions for IT professionals:
TechNet Security Troubleshooting and Support
Help protect your computer that is running Windows from viruses and malware:
Virus Solution and Security Center
Local support according to your country:
Known issues with this security update
- If you installed one or more localized versions of the security update 2721642 that was released on September 11, 2012, you should reinstall the appropriate refreshed localized update or updates. This is because the original localized update packages incorrectly contained English resource files instead of the correct localized resource files.
The English (United States) version of this software update installs files that have the attributes that are listed in the following tables. The dates and times for these files are listed in Coordinated Universal Time (UTC). The dates and times for these files on your local computer are displayed in your local time and with your current daylight saving time (DST) bias. Additionally, the dates and times may change when you perform certain operations on the files.