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Showing posts with label Hibernate. Show all posts
Showing posts with label Hibernate. Show all posts

Tuesday, October 11, 2011

HIBERNATION MODE : HOW SAFE FOR YOU?

1. How often while using your PC u use the hibernation mode?I am sure that after reading the text below u r hardly going to use it owing to the serious compromise of your info of what you do and when you do ?

2. Ok…what do we mean by hibernation mode?......it simply means that via using this mode we are basically creating a snapshot of the contents of the computers RAM which is then saved to the root of the hard drive as “hiberfil.sys”!!!!This would now mean that the then current running applications and other data in RAM will be written to the hard disk.

3. For example, if we went into the hibernation mode with our browser still open…..then textual strings such as the last Google search performed or text from an open web page will be written to hard drive as the computer “hibernates”.

4. The Windows hiberfil.sys also become an issue while using encryption software such as TrueCrypt. If a Windows system is placed into hibernation mode without unmounting encrypted containers or volumes then the encryption keys used to access these containers will likely be left in RAM in plain-text. RAM will then be saved to the hard drive in the hiberfil.sys. This means that we will be leaving the keys (passwords) to all of your private containers and volumes free for the finding.

5. Ok…..if at all we get hold of the hiberfil.sys…is it going to be that easy to read all that hex dec info?...no certainly not…here come sandmen project for assistance….now whats SANDMEN PROJECT….pls google….in short it is a library which assists in parsing data from the hiberfil.sys.

Disable Hibernation mode on Windows XP:
• Right-click empty area on desktop
• Choose “Properties”
• Select the “Screen Saver” tab
• Click “Power…”
• Select the “Hibernate” tab
• Uncheck “Enable hibernation”

Disable Hibernation mode on Windows 7:

• Open “Control Panel”
• Click “Power Options”
• Click “Change plan settings” for you current power plan
• Click “Change advanced power settings”
• Expand “Sleep”
• Expand “Hibernate after”
• Enter “0″ for “Setting:” to set hibernate to “Never”

Monday, July 19, 2010

Increasing Laptop Bty Life : Few ways

1. Hibernate: Hibernating the laptop is always a tidier option than putting it on standby, or shutting it down. This is because the laptop’s hibernate mode saves it in the state it was hibernated in, and does not require the laptop to reboot all applications, thereby using much less power.

2. Get some extra RAM: Whenever a laptop runs short of RAM memory it end up shifting to the virtual memory which results in hard disk use, which is a much less efficient option in terms of power consumption. Putting in extra RAM does use more power, so don’t get too much extra, but when compared to the use of virtual memory it’s a more efficient option.

3. Apply energy saving options on the OS

4. Bring down the brightness of the screen

5. Shut Down External devices: Most USB devices and other external devices like external hard drives or USB lights or even USB mice should be switched off and removed if not in use.

6. Shutdown background apps

7. Amend battery cycle: For a healthy Lithium-ion based battery, it is always suggested to keep the electrons that are present inside in motion occasionally. That means it’s never a good idea to keep you laptop plugged in or on charge all the time as the electrons lose their ability to store energy. One should let it discharge fully and charge it completely at least once a month to keep the battery as good as new.

8. Switch-off unused wireless radios

9. Try to reduce multitasking: When using the laptop on battery power, one should try as much as possible to use one application at a time, and should ideally shut one application completely before opening another, to reduce consumption of both processing and battery power.

10. Defrag on regular intervals
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