System Reserved Partition Seems Excessive

Hi all,
I just went from a 500GB SSD to a 1TB SSD. I migrated the Drive C from old to new SSD using the Samsung app. I have been puzzled by the relative lack of space on the resulting new SSD. Here are the results of checking with Win 10 Disk Management routine:

Total SSD size: 931.51 GB NTFS
First Partition: 698.32 GB NTFS Drive C:
Second Partition: 482 MB Recovery No drive letter, no information
Third Partition: 232.72 GB NTFS Drive P: System Reserved

Doesn't this third partition for System Reserved seem excessive? How much do I really need with Win 10 Pro? I would like to recover any extra disk space from this partition and add to the first partition. I may have to reformat the entire SSD and do clean reinstall of Win 10 Pro?

All insights appreciated.

The system reserved partition should be between 100 and 500 MB in size. I run mine at 100 MB. You goofed up and resized partitions incorrectly when you migrated to the new SSD.

Thank you for your replies. I did not get a chance to set drive size, as the Samsung Migration Tool did that automatically. I will do more research and resize the partition.

Minitool Partition Wizard Free

TNX from former LCDR

See these links for GPT and MBR drive layout and sizing:

UEFI/GPT-based hard drive partitions | Microsoft Docs

BIOS/MBR-based hard drive partitions | Microsoft Docs

Iatros55 said:

TNX from former LCDR

I'm former to. "Retired" end of 2017. Now working in Albany, OR.