[Drive wiper] Did not wipe all free space?

[ILoveInterwebs]

Today I installed CCleaner and after using it to clear cookies and temp files (ie: regular cr@p), I decided to wipe the free space on my hard drive, the reason I downloaded CCleaner.

 

I went to:

Tools > Drive Wiper > Free space only/ Simple Overwrite (1 pass), selected (D:) and clicked Wipe.

 

My data (D:) has about 260GB of free space, so I expected quite a long time of overwriting.

 

However, at first the percentage bar was increasing rather rapidly, but the remainting time was also increasing (instead of decreasing).

 

After a while, it changed to: .....MB of 200MB. That number climbed until it was 200MB and then the wipe stopped.

 

 

What happened there? Why did it wipe only 200MB, and not all 260GB?

[Andavari]

Edit: You need to supply more information:

1. Your Windows operating system version.

2. Version of CCleaner you're using.

3. Other resident software that's running such as the antivirus you use, etc.

 

Maybe try this, although I don't know if it will help:

1. Start CCleaner.

2. Click "Options->Settings" then under "Wipe Free Space drives" select the drive(s) you wish to wipe the free space on.

3. Click the large Cleaner icon at the upper-left, then under "Advanced" tick/enable the box "Wipe Free Space".

4. Once Wipe Free Space has finished then under "Advanced" untick/disable the box "Wipe Free Space".

 

Possible reasons Wipe Free Space may not work could possibly be other running software interfering.

Edit: Also maybe running a ChkDsk on your computer may help.

 

Personally whenever I use it I:

1. Disconnect from the Internet.

2. Turn off real-time shields in my anti-virus/anti-malware - which could possibly be the biggest interferer.

Edited September 7, 2011 by Andavari
Added more info

[ILoveInterwebs]

I am using

- Windows 7 Home Premium 32-bit

-CCleaner v3.10.1525

- McAfee AntiVirus plus

 

I will look into the things you mentioned.