Sign in with Microsoft
Sign in or create an account.
Hello,
Select a different account.
You have multiple accounts
Choose the account you want to sign in with.
KB4569509: Guidance for DNS Server Vulnerability CVE-2020-1350
This advisory describes a Critical Remote Code Execution (RCE) vulnerability that affects Windows servers that are configured to run the DNS Server role. We strongly recommend that server administrators apply the security update at their earliest convenience.
Update drivers manually in Windows - Microsoft Support
Select Update Driver. If Windows doesn't find a new driver, you can try looking for one on the device manufacturer's website and follow their instructions. Reinstall the device driver. In the search box on the taskbar, enter device manager, then select Device Manager.
How Internet Explorer uses the cache for DNS host entries
Summary. In earlier versions of Internet Explorer (Internet Explorer 3.x), DNS host entries are cached for 24 hours by default. In many cases, this is too long. During this period, some host entries stop working because of change in the IP address of the remote server that was initially resolved.
DNS server freezes and doesn't respond to DNS requests in Windows ...
This article describes an issue in which a Domain Name System (DNS) server freezes and doesn't respond to DNS requests in Windows Server 2012 R2. A hotfix is available to fix this issue. Before you install this hotfix, see the Prerequisites section.
DNS name resolution fails when using a long CNAME or DNAME chain record ...
To clear the DNS cache, perform one of the following methods. Use the DNS Server command-line tool . Use the Dnscmd.exe command-line tool to clear the DNS cache. To do this, follow these steps: Click Start, click Run, type cmd in the Open box, and then click OK.
Use the System File Checker tool to repair missing or corrupted system ...
Swipe in from the right edge of the screen, and then tap Search.Or, if you are using a mouse, point to the lower-right corner of the screen, and then click Search.Type Command Prompt in the Search box, right-click Command Prompt, and then click Run as administrator.If you are prompted for an administrator password or for a confirmation, type the password, or click Allow.
Remove specific prevalent malware with Windows Malicious Software ...
Microsoft generally releases the MSRT on a monthly cadence as part of Windows Update or as a standalone tool. (For exceptions, see Skipped releases.)Use this tool to find and remove specific prevalent threats and reverse the changes that they made (see Covered malware families).For comprehensive malware detection and removal, consider using Windows Defender Offline or Microsoft Safety Scanner.
Map a network drive in Windows - Microsoft Support
Windows 11 Windows 10. Map a network drive to get to it from File Explorer in Windows without having to look for it or type its network address each time. Open File Explorer from the taskbar or the Start menu, or press the Windows logo key + E. Select This PC from the left pane. Then, on the File Explorer ribbon, select More > Map network drive.
DNS queries fail on secondary DNS server running Windows Server 2012 R2 ...
This article describes an issue when the DNS queries fail on a Windows Server 2012 R2 or Windows Server 2012-based secondary Domain Name System (DNS) Server.This issue can be resolved by one of the following update rollups: 2962409 Windows RT 8.1, Windows 8.1, and Windows Server 2012 R2 update rollup: June 2014.
Device protection in Windows Security - Microsoft Support
Security Windows 10 Windows 11. Windows Security provides built-in security options to help protect your device from malicious software attacks. To access the features described below, tap the Windows Start button, type windows security, select it from the results, and then select Device security. Notes: What you actually see on the Device ...