Upgraded to Ubuntu 16.04 now I can't boot Windows 7 or 10
672
Unable to boot into Windows after installing Ubuntu, how to fix?
7745
Dual boot UEFI Windows 7 and Ubuntu 12.04 (both 64 bits). W7 entry doesn't appear in GRUB
12237
Attempted Installing Ubuntu on Windows 8.1 UEFI, Confused about booting in UEFI, Legacy Mode
5413
How can I repair grub? (How to get Ubuntu back after installing Windows?)
96248
Cannot Restore Grub After Windows 8.1 Upgrade
156812
How to reinstall Ubuntu in dual boot with Windows 10?
151579
Interrupted upgrade from 15.10 to 16.04, Ubuntu boots into black screen
1285
My computer boots to a black screen, what options do I have to fix it?
33376
Boot camp install of Windows 7 issue, no bootable devices
5732
How can I migrate a Windows 10 from BIOS/MBR boot to UEFI/GPT without reinstalling?
6123
How do I change Windows 7 to boot normally instead of in safe-mode?
26383
How to install Windows 7 after Ubuntu and dual boot?
63034
How to fix the Windows 10 boot loader from Windows
88164
How do I boot into recovery mode?
77542
Grub and Ubuntu disappeared after Windows update
143712
Repair Grub after install windows?
55389
How Do I Remove Ubuntu and Install Windows 7?