Bcedit [upd]
You don’t need this for daily browsing. You do need it when:
Note: This is a security risk; turn it back OFF when finished. bcedit
bcdedit /export C:\BCD_Backup
Let’s break down what BCEDIT does, why you shouldn’t fear it, and the five commands that actually matter. You don’t need this for daily browsing
bcdedit /timeout 15
Sometimes you need to force the boot menu to show or prepare for Safe Mode debugging. To force the legacy boot menu (useful for F8 functionality): why you shouldn’t fear it