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Windows 7: automatically changes in Drive C free space

05 Apr 2019   #1

automatically changes in Drive C free space

my windows drive (C:) Suddenly go full and 0 bytes free! I go to free up the drive by removing some files and freed up about 12GB and then come back to "My Computer" see the free space is OK. after a few second refreshed the my computer and see the free space is going low every second in front of my eye without any file process like file copy or software installation etc ! with drive C full I can't do anything.

also I think the file delete process going done only in pretense and not real because each file I delete from desktop or drive C or my document, the delete process done very fast even with big files!
I use windows 7 64bit. my Eset antivirus not reported virus. I also run "chkdsk C: /f /v /x" but the problem is not solved.

My System SpecsSystem Spec
05 Apr 2019   #2

win 8 32 bit

What type or files as that may give a clue it could be some backup or a sheduled task there must something running
My System SpecsSystem Spec
07 Apr 2019   #3
wither 2

Windows 7 Pro SP1 64 bit

Someone else was having the same problem and I thought it had something to do with system restore. After looking around, I suggest following the advice here-

System Protection - Change Disk Space Usage

By the way, this is the thread I found that provided this advice-

Hard drive filling up with nothing
My System SpecsSystem Spec

07 Apr 2019   #4

Windows 7 Ultimate x64

Quote   Quote: Originally Posted by rezaf View Post
also I think the file delete process going done only in pretense and not real because each file I delete from desktop or drive C or my document, the delete process done very fast even with big files!
No OS will ever "pretend" to delete files and do nothing really.

What you're seeing is totally normal and the way Windows is designed to be. When you delete file, all that really happens is that the directory entry is removed and the space is marked as "free" in the file system, but the contents are left alone (that's why you can undelete files).

The consequence of this is that deleting a file becomes very fast, and file size becomes almost irrelevant. In fact, deleting a 1KB text file is very likely to take the same time as deleting a 5GB movie!
This is the way all operatating systems work since the early 1970s.
My System SpecsSystem Spec
08 Apr 2019   #5


Hello Dear friends. thanks for your replies. through your replies I found the source of problem.
I installed WizTree software and found that Internet Download Manager's template files occupied the disk space and after deleting the files, the problem solved.
My System SpecsSystem Spec
09 Apr 2019   #6

Windows 10 64

I also got that WizTree SW. Gonna check it out if occupies my disk space as well.
My System SpecsSystem Spec

 automatically changes in Drive C free space

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