[SOLVED] SOLVED My SSD (Windows 10 pro) should have 500 gigs of free space but doesn't

[DrDca]

This is a 2TB SSD, which suddenly became full. I've done all the usual scans for odd stuff, viruses, etc . Treesize shows 80g free but only shows about 1TB of used space when I add it up. I removed 1.2TB from the drive and put it elsewhere, and the free space on the drive actually decreased!! This is my boot drive, btw. I'm baffled!
In addition, Disk management shows normal 2 partitions (system reserved and C) and is formatted MBR, but various partition management programs show both partitions as "unformatted". Advice from the gurus would be appreciated - I have backups, but want to know what's going on before repaving!

 

[rgd1101]

upload a screenshot of treesize and disk management to imgur.com and post the link here

 

[USAFRet]

Install and run either WinDirStat, or WizTree.

Run as Administrator, selecting only the drive in question.
Post a screencap here.
Also, a screencap of your Disk Management window.

 

[DrDca]

Here's Drive manager and Treesize (admin)

https://imgur.com/a/j8Y2mJb

View: https://imgur.com/a/j8Y2mJb

 

[USAFRet]

Here's Drive manager and Treesize (admin)

Which doesn't show us the drive in question, nor any real info from Treesize...;(

 

[DrDca]

Oh - could you please tell me what detail you'd like me to try and capture? It's drive 0, fwiw.

 

[USAFRet]

Oh - could you please tell me what detail you'd like me to try and capture? It's drive 0, fwiw.

Your Disk Management does not show the drive in question.
The Treesize only shows us that one partition.

 

[DrDca]

Oops! The correct drive manager:

https://imgur.com/AweYxZw

View: https://imgur.com/AweYxZw

I don't know how to make windirstat or treesize show more than one partition-- if you could point me, please?

 

[USAFRet]

Oops! The correct drive manager:

https://imgur.com/AweYxZw

View: https://imgur.com/AweYxZw

I don't know how to make windirstat or treesize show more than one partition-- if you could point me, please?

WinDirStat, as Administrator, with only the C partition is OK.
The whole window, please.

 

[DrDca]

Ok -- done! Or should I expand it in some way?

https://imgur.com/9H8xd5U

View: https://i.imgur.com/9H8xd5U.jpg

 

[USAFRet]

That is lacking quite a bit, even compared to your earlier TreeSize.
This is only showing ~80GB used space.

 

[DrDca]

Yes, and it's now down to 40 gigs ... :-( Removing files/dirs doesn't increase the free space, and often lowers it.

 

[USAFRet]

Yes, and it's now down to 40 gigs ... :-( Removing files/dirs doesn't increase the free space, and often lowers it.

"and often lowers it"
Another Restore Point, perhaps?

 

[DrDca]

No, restore points are turned off, and in any case haven't worked for a year (points are apparently too big to fit!)

 

[DrDca]

SOLVED! I rebooted from the Windows CD, went to repair options, and told it to repair. It spun for a while, rebooted, spun some, and rebooted correctly. On examination, bother partitions now show in partition magic as formatted, the drive space is correct, and all seems well!! The cause remains a mystery!

Thanks for the help!