Some of the shortcut keys may be assigned to your desktop system. Keys that are assigned to the desktop system are not available to Office. Try to assign different keys either for Office, in Tools - Customise - Keyboard, or in your desktop system.
Press the keys Alt+ to open a menu. In an open menu, press the underlined character to run a command. For example, press Alt+I to open the Insert menu, and then H to insert a hyperlink.
To open a context menu, press Shift+F10. To close a context menu, press Escape.
Choose View - Toolbars - Insert to open the Insert toolbar.
Press F6 until the focus is on the Insert toolbar.
Press the right arrow key until the Section icon is selected.
Press the down arrow key, and then press the right arrow key to set the width of the section that you want to insert.
Press Enter.
Press F6 to place the cursor inside the document.
Press F6 until the focus is on the Standard toolbar.
Press the right arrow key until the Table icon is selected.
Press the down arrow key, and then use the arrow keys to select the number of columns and rows to include in the table.
Press Enter.
Press F6 to place the cursor inside the document.