An information disclosure vulnerability exists in the Windows Performance Monitor Console when it improperly parses XML input containing a reference to an external entity. To learn more about the vulnerability, go to CVE-2017-0170.

If you use Windows Task Manager or the Perfmon /res command to start Resource Monitor on a computer that is running Windows 7 or Windows Server 2008 R2, the Perfmon.exe process crashes.

Fixes an issue in which a data collector set in Performance Monitor does not collect all required performance counter data. This issue occurs in Windows 7 or in Windows Server 2008 R2.

If some Windows functions aren't working or Windows crashes, use the System File Checker to scan Windows and restore your files. Though the steps below might look complicated at first glance, just follow them in order, step-by-step, and we’ll try to get you back on track.

Learn how to update drivers in Windows using Device Manager to update or reinstall a driver.

The Microsoft Defender Offline scan will automatically detect and remove or quarantine malware. Learn how to remove malware from your PC. Use Microsoft Defender Antivirus in Windows 10 or Windows 11 to scan your PC for malware, viruses, or other threats.

The versions of Windows that are listed at the beginning of this article include a command-line utility (Wmic.exe) to access Windows Management Instrumentation (WMI). Previously, an end user would generally write a script to gather information by means of WMI.

PC Health Check app brings you up to date info on your Windows device health, helping you take action to improve your device performance and troubleshoot performance problems. It is periodically updated based on customer feedback to help you make the most of your Windows PC.

Windows 10 Update Assistant. The Windows 10 Update Assistant downloads and installs feature updates on your device. Feature updates like Windows 10, version 1909 (a.k.a. the Windows 10 November 2019 Update) offer new functionality and help keep your systems secure.

Windows 11 Windows 10. If your system is asking you for your BitLocker recovery key, the following information may help you locate your recovery key and understand why you're being asked to provide it. Important: Microsoft support is unable to provide, or recreate, a lost BitLocker recovery key.