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Unhide all hidden rows and columns at the same time Apply to: Microsoft Excel 2010, Microsoft Excel 2013 Select all cells on a worksheet: Press CTRL + A On the Home tab, in the Cells group, click Format. Under Visibility, point to Hide & Unhide, and then click Unhide Rows or Unhide Columns. Microsoft Excel: Unhide Rows and Columns

First of all, check BIOS Settings of your laptop or desktop Dell Look for USB PowerShare BIOS Settings: USB PowerShare Lenovo Look for Always On USB Charge in Off Mode BIOS Settings: Enable Always On USB Charge in Off Mode