How To Dual Boot?

Nimit

Well-Known Member
#1
How can i add Windows 7 to Windows 8.1 i want to do Dual Boot
So i can use both os.

I have made the partination but don't know what to do next.
 


#2
Once the partition is created and assigned a drive letter, the next step is to install the OS. During the install of the OS you will be given the option to choose where you want the install to be located. The key to that is to choose the custom install path. Youtube has plenty of video's on the subject.
 


Nimit

Well-Known Member
#3
What is mean by assigned a drive letter?
 


patcooke

Microsoft MVP
Staff member
Premium Supporter
Microsoft MVP
#4
When you created the partition it should have assigned a drive letter to it and it should show in file explorer. If it doesn't then you should use use control panel to assign a drive letter
 


ussnorway

Windows Forum Team
Staff member
Premium Supporter
#5
To be clear, It's a VERY bad idea to dual boot Windows 7 with 8.1.1… Windows 7 is a legacy system and they just aren’t that compatible.

If you have a laptop and need windows 7 then hyper-v allows you to run it virtually without graphics.

If you have a desk top then a multi-boot set up allows Windows 7 and Windows 8.1.1 to each have the file structure designed for them, each hdd has it's own swap file and you need to keep windows 7 away from the Windows 8.1.1 C drive… I still don't recommend it unless you are very clear on what system is allowed to access which files.
 


Last edited:
#6
To be clear, It's a VERY bad idea to dual boot Windows 7 with 8.1.1
I've been running this setup since 8 came out on my laptop....I've never had and issue. Windows 7 Home Premium is the primary OS (OEM)....once I partitioned the HDD and clean installed 8.1....the 8.1 boot order menu appears at startup rather than the windows 7 black generic screen for dual booting and I choose my OS. Works flawlessly for me.
 


Nimit

Well-Known Member
#7
I have a laptop i wanna put Windows 7 Vista :D
 


zirkoni

Honorable Member
#8
To be clear, It's a VERY bad idea to dual boot Windows 7 with 8.1.1
Always install the older operating system first and it will work just fine.
 


Nimit

Well-Known Member
#9
Yes i can see the drive in File Explorer.

I have created 2 Drivers E and F
 


ussnorway

Windows Forum Team
Staff member
Premium Supporter
#10
Works flawlessly for me.
I assume you have it in legacy mode... press [windows key] + [r] and type "msinfo32" (without the quotes) to confirm. If so then 8.1 isn't working at its full potential is all I'm warning about. It’s your system guys and more power to you but there are pit falls; slow boot times, old file formats and less security is inherent to legacy.

I have a laptop i wanna put Windows 7 Vista
This forum is windows 8... you’d be better posting in the windows 7 or vista about this but ime they get along fairly well together.
 


Saltgrass

Excellent Member
Microsoft Community Contributor
#11
As was mentioned, it us normally better to install the newer OS after the older OS.

But with windows 8/8.1 there was another configuration called UEFI. If you don't know what that is, then you need to do some research.

Then you need to decide if you want a Boot Menu, or pick a particular install to boot during the boot process.

I currently have Independent Windows 7 UEFI and Windows 8.1 UEFI install on different drives and it seems to work fine.

I don't believe you can use a Boot Menu with one UEFI and one Legacy install.
 


Nimit

Well-Known Member
#12
I changed my plan already :)

I downloaded Windows 10 but really extrememly scared how to do dual boot now.

I don't know what is UEFI or whatever.
 


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