HOW to triple boot on already dual booted PC ?

[yogesh kalyana]

Hello,

I plan to download and install Ubuntu OS .

Currently my machine runs as follows:

Windows 10 pro
alongside
Windows 7 ultimate

These dual boot automatically, when i installed them one by one on two partitions.

I installed Windows 10 pro first, then 7 ultimate.

My question is:

which Ubuntu OS should i download as I want to to add it to the list of operating systems on my device. Not replacing windows 7, or 10 as i love them both.

What would the process be to add Windows 10 to my list of operating systems? Is it as simple as making a install USB/DVD, installing to a separate partition and all is well? Or do I need to do back flips to make it work?

also please not i have two H DD's
one is 298 GB and one is 1 TB
i have already did few partitions as

120 GB (where windows 10 is installed)
40 GB (where windows 7 ultimate is installed)
and two empty partitions of 128 GB and 10 GB

please help me in installing Ubuntu on the 10 GB partition and steps needed.

 

[skittle]

Get latest ububtu and install to free space on whatever partition. Install the bootloader, GRUB. And run 'sudo update-grub' after reboot (supposedly it does this automatically). This will find all your other OS's and add them to grub boot list.

BTW you may want to give ubuntu a bit more than 10GB for installing other programs

 

[yogesh kalyana]

Get latest ububtu and install to free space on whatever partition. Install the bootloader, GRUB. And run 'sudo update-grub' after reboot (supposedly it does this automatically). This will find all your other OS's and add them to grub boot list.

BTW you may want to give ubuntu a bit more than 10GB for installing other programs

can you help with complete procedure please?

 

[skittle]

It is possible and relatively easy as people have been doing this for 20+ years. There's got to be 10000 guides, videos and even the official ubuntu wiki already available if you search just a little bit.

 

[yogesh kalyana]

It is possible and relatively easy as people have been doing this for 20+ years. There's got to be 10000 guides, videos and even the official ubuntu wiki already available if you search just a little bit.

tried it many times
it installs successfully but when it reboots it only gets me to choose from windows 7 or 10
and the ubuntu or linux bootloader is not coming up
what to do ?

 

[mc962]

Disable fast startup on windows, located under power options i believe. I think it's Windows 10 that is the one that uses it, but it isn't really needed

 

[yqd321]

[/QUOTE]

It is possible and relatively easy as people have been doing this for 20+ years. There's got to be 10000 guides, videos and even the official ubuntu wiki already available if you search just a little bit.

tried it many times
it installs successfully but when it reboots it only gets me to choose from windows 7 or 10
and the ubuntu or linux bootloader is not coming up
what to do ?

You may find linux in your boot device selection during start up ( f9 key in my HP Envy 15)