https://business.forums.bt.com/t5/Archive/Outlook-account/m-p/80477#M25927 <P>The reason may be when you run Outlook in the compatibility mode, or if you are using a profile created in an older Outlook version, or if the Outlook data file (.pst or .ost) was deleted or damaged as the result of incorrect uninstallation or reinstallation of Outlook.&nbsp;If it happens again I might suggest to go to the "<A href="https://www.outlookrepaironline.com/" target="_self">how to fix Outlook errors</A>" section.</P><P>&nbsp;</P><P>&nbsp;</P> Thu, 19 Apr 2018 11:26:40 GMT stanleyter66 2018-04-19T11:26:40Z https://business.forums.bt.com/t5/Archive/Outlook-account/m-p/80449#M25924 <P><SPAN>Since I have updated Windows 10 on my laptop, I cannot access Microsoft Outlook account. It just goes with an error message: An unknown error prevented access to Outlook.</SPAN><BR /><BR /><SPAN>Appreciate any help here!</SPAN></P> Mon, 09 Apr 2018 17:10:29 GMT https://business.forums.bt.com/t5/Archive/Outlook-account/m-p/80449#M25924 garrymacen 2018-04-09T17:10:29Z https://business.forums.bt.com/t5/Archive/Outlook-account/m-p/80477#M25927 <P>The reason may be when you run Outlook in the compatibility mode, or if you are using a profile created in an older Outlook version, or if the Outlook data file (.pst or .ost) was deleted or damaged as the result of incorrect uninstallation or reinstallation of Outlook.&nbsp;If it happens again I might suggest to go to the "<A href="https://www.outlookrepaironline.com/" target="_self">how to fix Outlook errors</A>" section.</P><P>&nbsp;</P><P>&nbsp;</P> Thu, 19 Apr 2018 11:26:40 GMT https://business.forums.bt.com/t5/Archive/Outlook-account/m-p/80477#M25927 stanleyter66 2018-04-19T11:26:40Z