What size is this x360 disk supposed to be?

[banhien]

@jwg 

Image shows clearly 512GB. Could be faulty disk

Regards.

[jwg]

I did diskpart clean.  Are you saying "clean all" does more? 

[jwg]

I'll give that a try.  I do see now that clean all zeros the disk and hence does more than simply clean.  It's worth a try.  The one think I did notice along the way is that I did get an error message that the backup partition table was corrupted.

[jwg]

I think you're right.  Given that I have a good image backup, I think I'm going to replace the drive.
Thanks everyone for your help.

[jwg]

The disport clean all didn't fix it.

[TzortzisG · Accepted solution]

Although I doubt this will fix it but can't hurt to try:

SanDisk SSD Firmware Update for SATA SSD X3521006 Rev.A

Description: This package provides a tool that will run in Windows to update the SanDisk Solid State Drive (SSD) Firmware. This package is available for supported notebooks that are running a supported operating system.

Fix and enhancements:  Enhances the ability to recover data on a SSD drive connected to the system when the system is powered off unintentionally while the SSD is being used.

https://ftp.hp.com/pub/softpaq/sp77001-77500/sp77439.exe

https://ftp.hp.com/pub/softpaq/sp77001-77500/sp77439.html 

DEVICES SUPPORTED:
SanDisk X300 M.2 128 GB SSD
SanDisk X300 M.2 256 GB SSD
SanDisk X300 M.2 512 GB SSD
SanDisk X300 SSD 2.5 in 7 mm 128 GB
SanDisk X300 SSD 2.5 in 7 mm 256 GB

Dashboard Support Information

The Dashboard helps users maintain peak performance of both SanDisk and Western Digital drives in Windows® operating systems with a user-friendly graphical interface for the user. The Dashboard includes tools for analysis of the disk (including the disk model, capacity, firmware version, and SMART attributes) and firmware updates..

https://support-en.wd.com/app/answers/detailweb/a_id/42925 

https://wddashboarddownloads.wdc.com/Dashboard/DashboardSetup.exe 

Secure Erase and Sanitize

Secure Erase and Sanitize both securely erase all user data and reset the SSD to out of box performance

https://support-en.wd.com/app/answers/detailweb/a_id/44171 

[jwg]

That fixed it!  Thank you.  Jim

[jwg]

The annoying thing about this (one of many actually),  is that the checks I did for updates did not reveal this update.

[TzortzisG]

Well what do you know! Even a broken clock is right twice a day 😁

I'm glad you got it straightened out with just a flash to its firmware....

Firmware updates are hardware level updates and not always shown (I think).

Take care!