The page cannot be found 404

[AhrimanSefid2]

Hi All Me Update To 9.0.1 But No't Load Page Send Me Error:

[B]The page cannot be found[/B]

The page you are looking for might have been removed, had its name changed, or is temporarily unavailable. 
Please try the following:
[LIST]
[*]Make sure that the Web site address displayed in the address bar of your browser is spelled and formatted correctly.
[*]If you reached this page by clicking a link, contact the Web site administrator to alert them that the link is incorrectly formatted.
[*]Click the [URL="javascript:history.back(1)"][COLOR=#ff0000]Back[/COLOR][/URL] button to try another link.[/LIST][B]HTTP Error 404 - File or directory not found.
Internet Information Services (IIS)[/B]

Technical Information (for support personnel)
[LIST]
[*]Go to [URL="http://go.microsoft.com/fwlink/?linkid=8180"][COLOR=#ff0000]Microsoft Product Support Services[/COLOR][/URL] and perform a title search for the words [B]HTTP[/B] and [B]404[/B].
[*]Open [B]IIS Help[/B], which is accessible in IIS Manager (inetmgr), and search for topics titled [B]Web Site Setup[/B], [B]Common Administrative Tasks[/B], and [B]About Custom Error Messages[/B]
[*][B]

[/B][/LIST]