how to properly dual boot
how to properly dual boot
I’m handling this by switching between Windows 7 and 10 smoothly, each on its own SSD. The system often runs a disk check for both drives during boot, which slows things down even when you skip those checks. I discovered a helpful guide at howtogeek.com that explains how to set up a seamless OS selection screen in Windows 10 tech preview. It might be available there, or you could try enabling it manually through the BIOS/UEFI settings. Let me know if you’d like more details on that process!
Typically this display happens when two operating systems are connected to the same storage device. Because you've placed Windows on Drive A, it doesn't recognize a Windows installation on Drive B. If both OSs had been installed in different partitions on Drive A, the issue would arise. Regarding the disk check prompt, I'm not sure what's causing it. I'll refer that to the other helpful users here.
I'm a resident multi-booter. What @ RossMadness mentioned fits perfectly. There are two operating systems to pick from and two drives where one is meant for extra storage but isn't. I faced this issue before and resolved it by reinstalling and starting with Windows 7, then 8, followed by OSX, Ubuntu, and Linux Mint. Eventually, I ended up with Windows 7, 8.1, and 10TP, and everything functions smoothly. If you haven't installed them in the Oldest-Newest order, I suggest doing so. Connect the Windows 7 drive first and place the 10 drive next to it whenever you like. Just keep in mind that the BIOS might label one drive as default, which could affect everything if it mistakenly sets the newer one as default.
Update the boot manager for your storage device. Based on your understanding, you have Windows 7 on one drive and Windows 10 on the other. Ideally, each drive should have a single boot manager installed.
Open msconfig from the Start menu.
In the search bar, type "msconfig" and select it from the results above.
Once launched, navigate to the Boot tab.
Configure your Windows installation there, selecting Windows 10 on the other drive or using BCDEdit.
I'm not entirely sure what you're referring to. You mentioned installing Easy BCD on your 7 drive and trying to fix it, but encountered an error when booting Windows 10. It seems the system reported a missing file. Also, you installed 7 then upgraded to Windows 10 using the 10TP drive. This might be different from what you did with Easy BCD.
Launch the admin command prompt in Windows 7. Execute the commands to boot from BCD and specify the drive letter, the correct mapping for Windows 7, and the corresponding driver letter. Restart the system. Observe the outcome. For more details on BCDboot, refer to the Microsoft documentation link provided. Additional guidance can be found at the SuperUser article on dual-boot setup.
Set up the operating systems following Microsoft's original sequence: begin with the earliest versions first, then proceed to later releases, culminating with Windows 10.