![]() ![]() The code is sent via the WWW-Authenticate header, which is responsible for identifying the authentication method used for granting access to a web page or resource. However, unlike with the 403 error, the 401 error message indicates that the authentication process failed. This is similar to HTTP 403 Forbidden Error, in that access isn’t permitted to the user. In most cases, it means that something is either wrong with the credentials or with the browser’s ability to read them as valid. These errors occur on websites that require a login in order to access them. It will include the phrase “HTTP Error 401” at the bottom, and instruct you to contact the site’s owner if the problem persists: The 401 Error in ChromeĪt other times and in other browsers, you might get a slightly less friendly warning that’s just a blank page with a “401 Authorization Required” message: Nginx 401 Authorization Required error message 401 errors can happen within any browser so the message appearing may differ.įor example, in Chrome or Edge, you’ll likely see a paper icon along with a simple message telling you that the page in question isn’t working. A 401 error, in particular, happens when your browser denies you access to the page you’re trying to visit.Īs a result, instead of loading the web page, the browser will load an error message. HTTP 400 status codes are encountered when there is a problem making a request. The server generating a 401 response MUST send a WWW-Authenticate header field containing at least one challenge applicable to the target resource. The 401 (Unauthorized) status code indicates that the request has not been applied because it lacks valid authentication credentials for the target resource. The second command line creates a backup copy of your registry and adds your comment without starting the Registry Checker tool GUI.įor additional information about the Registry Checker tool, please see the following articles in the Microsoft Knowledge Base:ġ83887 Description of the Windows Registry Checker Tool (Scanreg.exe)ġ83603 How to Customize Registry Checker Tool SettingsĢ01655 Error Message: You Have Restored a Good Registryįor additional information about how to use the Registry Checker tool, click Start, click Help, click the Index tab, type registry, and then double-click the "Registry Checker" topic.The Internet Engineering Task Force (IETF) defines the error 401 Unauthorized as: The first command line starts the Registry Checker tool graphical user interface (GUI) and prompts you to create a registry backup. Scanreg.exe /backup "/comment=this is a registry backup" Scanreg.exe "/comment=this is a registry backup" For example, you can type either of the following lines at a command prompt: The "/comment=" switch can be used by itself or with the /backup switch. If no registry errors are found when you run Scanregw.exe, you are prompted to create a backup copy of your current registry. The Registry Scan Results dialog box appears only when you use the Scanregw.exe command without any command-line switches. opt The /opt command-line switch causes the This switch does not back up the registry. Message indicating whether or not any errors wereįound. This switch does not back up theįilename Scans the registry file specified and displays a scanonly Scans the registry and displays a message if anyĮrrors are found. ![]() Without displaying any prompts if there is no autoscan Automatically scans the registry and backs it up Optimizes it by rebuilding it without unused space. fix Repairs any damaged portions of the registry, and "/comment=" Enables you to add a descriptive comment to the restore Displays a list of available backup files, sortedīy the date and time the backup was created. backup Backs up the registry and related files without The following table lists each command-line switch and its description: This article describes the command-line switches you can use when you run the MS-DOS version (Scanreg.exe) or the Windows version (Scanregw.exe) of the Registry Checker tool. ![]()
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