Windows 7: Laptop won't hibernate. Have I tried everything?

When I try to hibernate, the screen goes black, then immediately comes back to the log on screen; this is regardless of whether I go into hibernate via the start button, pushing the power button, or closing the lid. I have each of those methods set to hibernate.

What I've tried so far includes:

• Followed all steps in the tutorial/guide for the enable/disable hibernate per the tutorial. I did use an elevated command prompt.

• Flashed BIOS to latest update and set everything to default. Also looked through all options to ensure nothing would interfere with hibernate.

• Manually updated all drivers (especially display drivers) from device manager.

• Performed all windows updates.

• Performed a disk repair.

• Ran CCleaner.

• Looked through all my power plan settings to ensure hibernate is enabled and no options say "never" for hibernate.

• Increased the file of hibersys.fil to 100% per the tutorial. I did verify the size increase by looking at the size of the hyberfil.sys file; it correlated to the memory.

• Through device manager, I verified that none of my network adapaters (and others) are incorrectly preventing suspension of the system.

The rationale for using hibernate and why this is a big deal to me is as follows. Booting take time compared to dehibernating, which is instant. Also, more importantly, I usually have at least 8 instances of word/excel/email client/PDFs/web browser open as I work on a project. I often need to power down the laptop and then continue where I left off and reopening all of those items is quite annoying. Using hibernate, I do not have to close the various documents/programs to power down. This increases my efficiency enormously. Also please note that sleeping still consumes battery power where hibernating does not consume any battery power.

I've included a screenshot of the system in its current configuration for reference.



Re-installing windows is not an option for me.

I've been trying to resolve this for some time now with no luck. Any assistance would be greatly appreciated.