System error 5 has occurred. Access is denied.

This issue occurs if you use a connection method that uses Windows shell components or Explorer View. For example, you may experience one or more of the following symptoms:

1-if you try to map a drive to a document library by using the net use command, you are prompted to type your user name and password. After you type your user name and password, you receive the following error message:

System error 5 has occurred.
Access is denied.

2-If you try to view a document library by using Explorer View, you are prompted several times to type your user name and password. If you click Cancel, Explorer View displays Web folders. 

To have us enable Basic authentication on the client computer for you, go to the "Fix it for me" section. If you prefer to fix this problem yourself, go to the "Let me fix it myself" section.

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To fix this problem automatically, click the Fix it button or link. In the File Download dialog box, click Run, and then follow the steps in the Fix it Wizard.

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Microsoft Fix it 50623