What to do if Defraggler crashes during 0 fill

My computer crashed during 0-fill optimisation, it is a SATA SSD and I am running Win10 home edition x64.

Is there anything I can do to get the file space back from 0 fill?

I tried running it again and while it finished, it didn’t remove the prior information, as such it went from around 142Gb free to around 7.2 free.

I trust someone more knowledgeable than me will be along to help you recover your free space, but for Pete's sake don't run zero fill on a SSD, I can't think of much that's more irrational and destructive. Unless your SSD is 10+ years old, and even then I wouldn't do it.

It’s the only way defraggler lets me optimise it, like that’s the only option

Have you done a full restart of your machine yet?

Not shutdown, instead choose restart.

Use something like Treesize to see where your disk space has gone.

https://www.jam-software.com/treesize_free

Yeah I did but it seemed like it was stored as temporary system files, I’ll try a CCleaner scan to delete it

Just managed to solve it, it seems like running a CCleaner scan and deleting temporary system files worked - I have no clue how or why but it did and I’m eternally thankful

That's good to hear. I don't know what your original aim was with Defraggler and your SSD (I don't use Defraggler) but if you're having problems with DF then I would let Windows Storage Optimiser look after your drive, which it will do very well.