Feeds

Clearing swap and hibernation files properly

Two neglected open books

  • alert
  • submit to reddit

Providing a secure and efficient Helpdesk

If you're lazy, and cheap

Finally, there is a less secure, but convenient and free, approach for Windows users. You can set your swap file for automatic deletion each time you reboot or shut down your system. It's not a secure wipe, but if you've chosen a fixed-size swap file as I recommend, there's a fair chance that old data will gradually be overwritten as a new swap file is created each time you reboot. There's no guarantee that a new file will overwrite a previous one (because there's no guarantee that it will occupy the same physical disk area as a previous one), but this is a very easy thing to do, it costs nothing, and it's certainly better than neglecting the swap file entirely.

To set up your swap file for automatic deletion, go to Start ==> Run ==> and type regedit. The registry editor will launch. Before you make any changes to your registry, make a copy of it. In the left-hand pane of the registry editor, select the top level, labelled "My Computer". Now, in the upper menu bar, go to File ==> Export. In the export dialogue box, be sure to choose "All" in the Export Range option toward the bottom of the box. Now save your registry. If your changes cause any problems, you can re-install your previous registry files simply by opening the editor, choosing File ==> Import from the menu bar, and reversing the process.

Now, to set your swap file for automatic deletion, here's all you need to do:

In the left-hand pane of the registry editor, navigate to HKEY_LOCAL_MACHINE\SYSTEM\CurrentControlSet\Control\Session Manager\Memory Management. Next, in the right-hand pane, select ClearPageFileAtShutdown. Right click on it, choose "Modify", and change the value to 1. Reboot, of course.

Edit Registry

You can tell that it's working because shutting down Windows will take noticeably longer than before. Obviously, if you're in the habit of simply powering off your computer, you won't get much benefit from this. You do have to shut down normally for it to work.

New hybrid storage solutions

More from The Register

next story
Apple Pay is a tidy payday for Apple with 0.15% cut, sources say
Cupertino slurps 15 cents from every $100 purchase
Google recommends pronounceable passwords
Super Chrome goes into battle with Mr Mxyzptlk
Reddit wipes clean leaked celeb nudie pics, tells users to zip it
Now we've had all THAT TRAFFIC, we 'deplore' this theft
YouTube, Amazon and Yahoo! caught in malvertising mess
Cisco says 'Kyle and Stan' attack is spreading through compromised ad networks
TorrentLocker unpicked: Crypto coding shocker defeats extortionists
Lousy XOR opens door into which victims can shove a foot
Greater dev access to iOS 8 will put us AT RISK from HACKERS
Knocking holes in Apple's walled garden could backfire, says securo-chap
Microsoft to patch ASP.NET mess even if you don't
We know what's good for you, because we made the mess says Redmond
NORKS ban Wi-Fi and satellite internet at embassies
Crackdown on tardy diplomatic sysadmins providing accidental unfiltered internet access
prev story

Whitepapers

Providing a secure and efficient Helpdesk
A single remote control platform for user support is be key to providing an efficient helpdesk. Retain full control over the way in which screen and keystroke data is transmitted.
Top 5 reasons to deploy VMware with Tegile
Data demand and the rise of virtualization is challenging IT teams to deliver storage performance, scalability and capacity that can keep up, while maximizing efficiency.
Reg Reader Research: SaaS based Email and Office Productivity Tools
Read this Reg reader report which provides advice and guidance for SMBs towards the use of SaaS based email and Office productivity tools.
Security for virtualized datacentres
Legacy security solutions are inefficient due to the architectural differences between physical and virtual environments.
Secure remote control for conventional and virtual desktops
Balancing user privacy and privileged access, in accordance with compliance frameworks and legislation. Evaluating any potential remote control choice.