My HP Spectre x360 boots really fast and I can't figure out how to access the BIOS screen?
Follow these steps to open the Startup Menu from within Windows. In Windows 10, click Start. In Windows 10 and Windows 8, click Power and hold down the Shift key while you click Restart. Continue holding down Shift until the Choose an Option screen displays. From the Choose an Option screen, click Troubleshoot. Choose an Option screen with Troubleshoot selected From the Troubleshoot screen, click Advanced options. Troubleshoot screen with Advanced options selected From the Advanced options screen, click UEFI Firmware Settings. Advanced Options with UEFI Firmware Settings selected From the UEFI Firmware Settings screen, click Restart. UEFI Firmware Settings Restart The computer restarts and the Startup Menu opens.