Managing Unallocated Disk Space in Windows 7 64-bit: Create New Partition, Disk Management, 350GB

Hello, I reinstalled Windows 7 64bit. With the whole format it did me, I don't know why, but only 2 disks. In disk management, it shows me that I have 350gb unallocated. I wanted to make a 3rd disk out of it, but I can't: / I right-click on this unallocated part gives New simple volume -> click everywhere next assigns a letter and after selecting everything I get an error that there is not enough space available on the disk to complete this operation. Maybe someone knows what to do

Send a screenshot from the disk manager. How big is your disk?

disk 1 t

Added after 1 [hours] 33 [minutes]:

I created a G disk now but I can't rewrite this memory to it, just reduce it, I wanted to delete G and I can't

You have limited partition management options from within Windows. You should use a good partitioning program like GParted.

Ps.
From Windows - I meant the use of system tools.

Use AOMEI Partition Assistant - you can create a partition in a simple and easy way. It is a small and convenient program that runs from Windows.

Microsoft hasn't tried hard and there are partition problems sometimes. I recommend AOMEI Partition Assistant easy and fun. If you feel up to it, I recommend that you make a Hiren's BootCD, there you will have everything you need for everything, including disk sharing programs.

Microsoft did everything right. Nobody noticed that there are only primary partitions on the disk, there are exactly four of them, there cannot be more basic partitions (on an MBR disk). The extended partition also cannot be created at this time due to the same limitation. Several possible solutions:

- two partitions would have to be embedded as logical partitions in the extended partition created. A partitioning program can help with this (e.g. gparted should be able to handle this), but while such changes are possible, I don't recommend them.
- what's on the last small partition? There is no letter assigned. If you are not using it, you can delete it, then from all the space you can partition from all the free space.
- the solution that I would choose - the simplest and probably the safest - expand partition D with available free space, you will have one large partition instead of two small ones. It is even more convenient in my opinion, the more that there is already a separate partition for the system.

I did a reinstall of wimdows and coped with the problem, thank you for the advice