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Ideally, this utility would know where in physical RAM an application was and completely clear its contents when it's closed. Does anyone know of such a utility?

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closed as off topic by KronoS, HackToHell, Nifle, Everett, 8088 Mar 10 '13 at 20:05

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What would you expect to be the result of this? When a process exits, all memory it allocated is automatically freed. –  Oliver Salzburg Mar 10 '13 at 0:00
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What's the possible threat here? If you're worried about live forensics, unplugging the system does usually work, and very often people do it anyway. Considering the window for a freeze attack is tiny, adding a physical lock to a case and pulling the cord should utterly negate most forms of memory acquisition, live or offline. –  Journeyman Geek Mar 10 '13 at 0:16
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@OliverSalzburg and Journeyman Geek: I am a bit worried about live forensics, and am looking for a solution to zero out an area of RAM when a restart would not be ideal. –  christiansonk Mar 10 '13 at 0:32

2 Answers 2

up vote 1 down vote accepted

Windows already zeros all free Memory before it is used again (zero page thread):

http://blogs.msdn.com/b/tims/archive/2010/10/29/pdc10-mysteries-of-windows-memory-management-revealed-part-two.aspx

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Awesome, thanks. –  christiansonk Mar 11 '13 at 18:24

http://www.jaystech.com/2007/12/how-to-clear-your-ram-without.html

  1. Right click anywhere on your desktop.
  2. Point over “New”, then select “Shortcut”.
  3. Copy the below line (as it is):

    %windir%\system32\rundll32.exe advapi32.dll,ProcessIdleTasks

  4. Paste it there & click “Next”.
  5. Give it a name like Clear RAM
  6. That’s it, run it every time your computer goes slow.

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Thats a bit of an urban myth - lifehacker points at microsoft's documentation, which disagrees with this –  Journeyman Geek Mar 10 '13 at 3:19

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