trying to dual boot. i have windows 10 PLEASE HELP

[ФÐ|invader zim]

i have windows 10, i am hardware savy, but struggle a bit with the software side. i have a 250g ssd with windows 10, and im trying to put windows 7 on there as a dual boot so i can run the fallout franchise. i tried creating a partition in windows disk manager, but it says the most i can shrink my current volume by is 75 mb. my current volume is NOWHERE NEAR full. i have no idea what to do to proceed. thanks for any help!

[Fleetscut]

it wont let you shirnk because the file system decided to put something in the last few blocks. if i remember correctly defragging an ssd isnt the greatest idea. you might need to look for an advanced shrinking tool that can clean up the fs as it shrinks

[Willowwizard]

Well; if you're still looking to dual-boot, I'd suggest installing Windows to another drive and not another partition.

Windows is known to be stubborn when it comes to installing bootloaders on the same drive.

 

If you really insist on re-partitioning your drive however, make a Gparted boot drive (on a CD or USB flash drive) and do it from there.

Keep a Windows installation disk handy as this may break your bootloader installation, depending on your configuration.