Question bitlocker is not offered for one ssd?

[barrelrider]

I have an acer 2tb ssd which does not offere bitlocker encyrption. I've used bitlocker on other ssds of the exact same model. The ssd is not a dynamic disk. All other internal drives on this pc have bitlocker enabled. I've rebooted etc. No errors reported on the drive. This seems to be a rare topic so I hope I can find some help here. The OS is windows 10, 22H2.

The original ssd in this position, e:, did have an issue that chkdsk etc could not fix. it was an identical model acer ssd. I removed that and replaced with the current ssd; restored the parition from backup. the new ssd reports no issues. But this detail is the only "special" thing in can think of about the drive.

The computer has TPM via the intel cpu.

Thanks

 

[barrelrider]

I found a page stating that if a partition other than the boot partition is marked active, bitlocker may not want to encrypt it. My boot drive is an m.2, c: of course. In disk management that partition is NOT marked as active, it says boot, page file, crash dump, basic data partition. I don't want to mess with that, but the just restored e: drive is marked Active, Primary Partition, somehow. Possibly this is why bit locker won't bite? Will it be same to set that partition to not be active, even when there are no other partitions marked active?

 

[barrelrider]

I took the plunge and made the e: drive inactive; now bitlocker can be applied to the drive.