SSD not showing real size

Hi all,

searched everywhere but found no working solution yet.

Bought a second hand macbook which had a windows partition as well .

Did a fresh install and formatted the ssd to APFS , but the container disk is only 958,38 GB of the 1TB ssd.

I then did the following :

in terminal removed the old windows partition (think it was called disk0s3)

Then I wanted to grow my main disk by the following command :

diskutil ap resizecontainer disk0s2 0

unfortunately I get this error :

Started APFS operation

Error: -69743: The new size must be different than the existing size

My Mac keeps thinking 958,38 is the maximum possible size.

I also tried this in internet recovery, same result..

is there anyone who could help me rebuild the size without needing to clone my HD .

diskutil list :

/dev/disk0 (internal, physical):

#: TYPE NAME SIZE IDENTIFIER

0: GUID_partition_scheme *1.0 TB disk0

1: EFI EFI 209.7 MB disk0s1

2: Apple_APFS Container disk1 958.4 GB disk0s2

/dev/disk1 (synthesized):

#: TYPE NAME SIZE IDENTIFIER

0: APFS Container Scheme - +958.4 GB disk1

Physical Store disk0s2

1: APFS Volume Macintosh HD 775.5 GB disk1s1

2: APFS Volume Preboot 23.5 MB disk1s2

3: APFS Volume Recovery 519.0 MB disk1s3

4: APFS Volume VM 1.1 GB disk1s4

MacBook-Pro-van-Andras:~ andrasvleminckx$