I need help with a proplem in windows cipher command line

I rana the windows clean up cipher command cipher /w:c and a few minutes into the run time my system went off. When I powered up my PC later my memory was hard disk memory was clogged up. Up to 85% full I I've tryed to free up the memory but nothing is happening pls I need help


Windows Forum Team
Staff member
Could you maybe elaborate a bit more. I have no idea what
my memory was hard disk memory was clogged up
is, or provide a screenshot.


Fantastic Member
Premium Supporter
I've never run this command before, so I also don't know how well it works or if it works.
Here's a link on it though: Wipe your Deleted Data Away: Using cipher.exe

Do you have a laptop or tablet that you are worried about getting stolen and that's why you are trying to hide your data? Just curious.



Windows Forum Team
Staff member
It's very common with encryption utilities to mark disk space as allocated during the encryption process. For example during a full disk encryption with bitlocker your drive will appear to be almost full during this process until it finishes. There may be a system hidden "file" which is really the cipher programs way of "clearing" the unused space. I would look for a very large file and my guess is that is what cipher produced. You should be able to delete it.

Thanks but or suggestions hvnt helped. Okay it goes like this( I ran the command line cipher /w:c and as it was running, my PC's battery ran out. And the PC switched off , later that same day I powered my PC on and discovered that my hard disk memory was about 90 % full compared to 40% it was before I ran the command line again but yet my memory remain the same. still 90% full. What do I do to free up my disk memory


Windows Forum Team
Staff member
I ran cipher on a test VM with the same parameters and it runs like I stated. It creates a very large file which is how it "erases" unused space. If you open explorer you should see a folder in the root of C called EFSTMPWP. Delete that folder and you should get all your hard drive space back.

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