Windows 7 - Write caching

Ok, so my hard drive in ACHI mode does not allow me to enable write caching but in compatibility mode it does.

Should I enable write caching?

Also this whole thing about memory loss is bugging me on what they are talking about. I have a laptop with a battery and mostly has power. But what if power were to cut off or it gets somehow unpluged, will my HD be corrupt? or would that "Word" document I was working on that was not saved be gone, everything else will be fine?

Thanks

You can read this tutorial from Vistax64 on it. Basically, it's not recommended for laptops without a UPS. I believe if the power were to go out, only the temp. cache would be lost, so like your word document you were working on might be lost if it were to go out.
Hard drive speed boosts - Vista Forums


Also a tut on how to enable it with AHCI on, but I don't think it was relevant if you read all the comments in the tutorial.
Hard Drive Advanced Write Caching - Fix Cannot Enable - Vista Forums

But be notified that having it enabled has caused many to have a lower reported WEI score.
Experience Index. Low HD result

http://www.sevenforums.com/general-d...-your-wei.html