MacOS recovery disk utility not recognizing free space

i want to dual boot windows 10 and a hackintosh install. i've had one previously, so i know that my config is perfectly fine. i don't want to wipe my entire hdd since part of it's being used by windows, so i resized it and left 250 gb of free space.

the problem is, that when i load into macos recovery and go to the disk utility so i can make a new apfs partition, i don't see the free space on my hard disk, it just says it has one partition that is 250 gb smaller than the size of my hard disk.

the other problem is, that i can't even resize the hard disk using the macos disk utility, only the windows one. macos disk utility says that my hard disk is completely un-resizable.

2 SOLUTIONS:

It seems like you're encountering some issues when trying to set up a dual boot system with Windows 10 and macOS using iATKOS. This can be a bit tricky, but let's try to troubleshoot the problems you've mentioned.

Issue 1: Missing Free Space in Disk Utility

If you're not seeing the free space when using macOS Disk Utility, it might be because the space hasn't been correctly allocated or formatted. Here are some steps to try:

1. Check Windows Disk Management: Make sure that you have successfully resized your Windows partition and left the unallocated space. You can do this using the Windows Disk Management tool.

2. Use macOS Disk Utility: Restart your computer, boot into macOS recovery mode, and open Disk Utility again. Sometimes, the free space may not appear until you've actually selected the hard drive and then clicked on "Partition." From there, you should be able to create a new APFS partition in the free space.

3. Check for Errors: Make sure your hard drive doesn't have any errors or file system issues. You can do this by running the macOS Disk Utility's First Aid option on your main partition.

Issue 2: Unresizable Hard Disk in macOS Disk Utility

If macOS Disk Utility is not allowing you to resize your partition, it could be due to certain restrictions or the way the partitions are set up. Here's what you can try:

1. Backup: Ensure you have a full backup of your important data before making any changes to your partitions.

2. Recreate Partitions: Sometimes, it's easier to start fresh. You can delete the existing partitions and create new ones. Just make sure to back up your data first.

3. Use Third-Party Tools: If macOS Disk Utility continues to be uncooperative, you can consider using third-party partitioning tools like GParted or third-party macOS tools that provide more flexibility.

4. Reinstall macOS: As a last resort, you can reinstall macOS. During the installation process, you should be able to partition the drive as needed.

Remember that setting up a dual boot system can be complex, and it's essential to be cautious and ensure you have backups in place. Additionally, always check the legality of installing macOS on non-Apple hardware, as it may violate Apple's terms of service.