At times while using Windows system, an unexpected \'401 unauthorized\' error message appears on the screen to tell that the server is not able to locate the file requested. Some PC users take it as granted that the problem has nothing to do with the local computer but it is not true as at times problem is caused due to the computer itself. Here are some detailed information which explains the problem and how to fix 401 error immediately.

At times just refreshing the page in enough to solve the problem when the \'401 not found\' error occurs as it is the temporary issue of the server. However, if you continue to receive this error message then possibly the page is no longer available as it could have been moved or deleted or you might have just entered an incorrect URL. If that is the issue then you need to check the URL you typed in the address bar and make sure that there is nothing wrong with address you entered. If the address you entered is correct then you need to run an antispyware program on your computer to make sure that the computer is well against the viruses and other malicious threats. Beside that you also need to ensure that the program is always up-to-date because some browser hijackers have the tendency to display 401 error message when attempt is made to open some pages.

If the 401 unauthorized problem still exists, then you need to update your graphics driver by obtaining an update from the manufacturer\'s website or go into the \'Device Manager\' console and upgrade your device from there. To ensure that the problem is not caused by any outdated Windows versions get the latest Windows Update and restart your computer for the changes to take effect. If the 401 not found error still happens then there must be some issue with the Windows registry, so you need to clean the registry to remove the error. For that you need to use any efficient Windows registry cleaner software which will throughly scan the Windows registry and  eliminate all the issue related to it. So, just follow the methods as discussed over here to fix HTTP 401 error instantly.