I lost 1 tb capacity

i have WD 1 TB when i download windows 1o from microsoft on my external hard disk and after finish i going to check the disk capacity i see only small partition 32gb size and my old files i saved before all lost how i can recover my capacity 1 tb on external hard disk please if anyone know how fix that problem help me… thank…

Sounds like your hard drive has been reformated FAT32 which has a maximum partition size of 32gb and wiping all your existing data.

Dunno how it happened ? maybe you downloaded a Windows 10 Recovery Media image and when running it, it reformats the hard drive as a USB Recovery drive.

Anyways, the only way to recover your data is … either, data recovery software (you’ll also need another 1TB hdd to recover the data to) or data recovery service (very expensive)