Acer Aspire E1-521 Acer Aspire E1-521 Notebook Service Guide - Page 70

Crisis Utility SOP When to Use the Crisis SOP • When the system hangs while updating BIOS. • When power failure occurs and the system shuts down while updating BIOS. • When the system cannot boot normally after updating BIOS. (e.g. a black screen appears without a POST logo, etc.) Creating a USB Flash Crisis Disk To create a Crisis USB flash disk, perform the following: 1. On a machine with Windows OS, plug in the USB flash disk. 2. Launch Windows Explorer (or press + ) and search for the USB flash disk as "Removable Disk". Right-click on the USB disk, and select Format to format the USB disk, Figure 2:46. Format USB Flash Disk (1 of 2) 2-29 System Utilities