KB2533454

This article describes step-by-step instructions for mitigating issues you may have connecting to the Internet, or certain websites, on World IPv6 Day (June 8, 2011).

Specifically this article repairs configurations where you have IPv6 connectivity to the Internet, but it is not working properly. This is usually caused by a computer or a router configuring Windows with IPv6 connectivity that is unreliable. This can slow down access to the Internet or participating websites on IPv6 Day.

For more information about World IPv6 Day (June 8, 2011), please see About World IPv6 Day

For more information about this issue and to see if you are affected, please see this blog post.

To see a list of websites participating in World IPv6 Day, please see the Internet Society’s participant’s list.

To use this fix, you must be logged on to the computer as a member of the Administrators group, or your user account must be granted permissions to edit the Windows registry.

KB2534490

There are several tasks you can perform when using Vista to improve slow performance. Vista contains built-in-features that allow you to manage potential slow performance issues. These include:

  • Deleting programs you never use
  • Limiting how many programs load at startup
  • Running fewer programs at the same time
  • Turning off visual effects
  • Restarting regularly
  • Checking for viruses and spyware
  • Checking your computer’s speed
  • Disabling services you don’t need

To learn more about these features, please refer to Windows Help Article: “Optimize Windows Vista for better performance”
(http://windowshelp.microsoft.com/Windows/en-US/help/83EC0FFE-EE04-4D53-8B87-25D1F05C954E1033.mspx)
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The left pane of Performance Information and Tools includes tasks that can help you improve your computer’s performance. For more information on using these tasks, please refer to Windows Help Article: “Ways to improve your computer’s performance”
(http://windowshelp.microsoft.com/Windows/en-US/Help/95f70af6-edd6-4f2f-9f02-7d6bdf0190611033.mspx)
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There are several tasks you can perform to maximize already good performance. These include:

  • Ensuring that you have adequate RAM
  • Ensuring that you have an adequate virtual-memory configuration
  • Using ReadyBoost
  • Managing startup programs
  • Keeping your disks defragmented
  • Maintaining adequate free space on your disks
  • Avoiding tweaks of dubious value

For specific information about how to maximize Windows Vista’s performance, please refer to Windows Help Article: “Get maximum performance from Windows Vista”.

Microsoft Windows Vista contains a built-in-diagnostics feature that assists in managing potential slow performance issues. To learn more about it, refer to Microsoft’s “Built-in Diagnostics” page.

KB2519427

This article describes how to determine whether a computer is running a 32-bit version or 64-bit of the Windows operating system. Generally, a computer’s bit count indicates how much data it can process, the speed with which it can process the data, and the maximum memory capacity. In order to optimize the computer’s performance, the bit count of the operating system that is installed on the computer should match the bit count of the computer itself.

This article is intended for a beginning to intermediate computer user. You may find it easier to follow the steps if you print this article first.

KB2205122

You have a computer that is running Windows 7, Windows Vista, Windows Server 2008 R2, or Windows Server 2008. You use the Japanese Input Method Editor (IME) to input some characters in an application. When you press F5 to use the translation method that converts the character code to some specific kanji characters, a memory leak occurs. Therefore, the application that hosts the IME may stop responding if F5 is pressed many times.

KB2425702

You create a screen saver for your operating system to display pictures from one of the following locations.
Windows XP

  • My Pictures
  • Windows Live Photo Gallery

Windows Vista

  • Windows Photo Gallery
  • Windows Live Photo Gallery

Windows 7

  • Windows Live Photo Gallery

However, the screen saver may stop working if one of the following conditions is true:

  • There are invalid shortcuts in the folder or in the subfolder that stores the screen saver pictures.
  • The power setting is set to “Low Power.”

Notes:

  • If the screen saver displays pictures from My Pictures, the SCRNSAVE.EXE registry value in the following registry subkey is “C:\Windows\system32\ssmypics.scr”:

    HKEY_CURRENT_USER\Control Panel\Desktop

  • If the screen saver displays pictures from Windows Photo Gallery, the SCRNSAVE.EXE registry value in the following registry subkey is “C:\Windows\system32\PhotoScreensaver.scr”:

    HKEY_CURRENT_USER\Control Panel\Desktop

  • If the screen saver displays pictures from Windows Live Photo Gallery, the SCRNSAVE.EXE registry value in the following registry subkey is “C:\Windows\wlxpgss.scr”:

    HKEY_CURRENT_USER\Control Panel\Desktop

KB2288085

You receive a warning in the notification area of the task bar telling you that the Windows Firewall is turned off. The warning is displayed as a Windows security alert in Windows XP and in Windows Vista, and as an Action Center message in Windows 7.

Security alert in Windows XP Security alert in Windows Vista Action Center message in Windows 7
XP Alert Vista Alert Windows 7 Alert

In Windows XP or in Windows Vista, you double-click the security alert to open the Windows Security Center. The Windows Security Center warns you that the Windows Firewall is turned off. In Windows 7, you click the Action Center message, and then click Open Action Center. The Action Center warns you that Windows Firewall is turned off.

KB2292301

You shared files or printers on a computer that is running Windows Vista or Windows 7. However, you cannot access the shared files or printers from another computer.

KB2289618

When you try to use Remote Assistance to offer assistance to a computer that is running Windows Vista or Windows 7, you receive the following error message:

The remote server machine does not exist or is unavailable.

KB2271812

On a computer that is running Windows Vista, the Windows Security Center warns you that the Windows Firewall is turned off. When you click Turn on now in the Windows Security Center to turn on the Windows Firewall, you receive the following error message:

Security Center can’t turn on Windows Firewall.

In the Services console, you notice that the Windows Firewall service is not running even if the service is configured to start automatically. When you manually start the Windows Firewall service, you receive the following error message:

Windows could not start the Windows Firewall on Local Computer. For more information, review the System Event Log. If this is a non-Microsoft service, contact the service vendor, and refer to service-specific error code 5.

Note: To open the Services console, Click Start , click Run, type Services.msc, and then click OK.

KB2501696

Microsoft is investigating new public reports of a vulnerability in all supported editions of Microsoft Windows. The vulnerability could allow an attacker to cause a victim to run malicious scripts when visiting various Web sites, resulting in information disclosure. This impact is similar to server-side cross-site scripting (XSS) vulnerabilities. Microsoft is aware of published information and proof-of-concept code that attempts to exploit this vulnerability. At this time, Microsoft has not seen any indications of active exploitation of the vulnerability.