Windows XP won’t hibernate: Insufficient System Resources Exist to Complete the API

After upgrading my laptop to 1.5GB of RAM, it began to frequently refuse to Hibernate, giving an error message in the system tray reading: “Insufficient System Resources Exist to Complete the API”.

Digging around, I found this Microsoft Knowledgebase article, along with a patch, which, insanely, isn’t available on Windows Update. Grr!

It seems the problem is caused due to the fact that when instructed to hibernate, XP has to find contiguous free space equal to the amount of RAM installed in the system. Naturally, as RAM increases, this becomes harder. Why on earth it’s incapable of using non-contiguous space is beyond me…but maybe that’s what the patch solves 🙂

By Phil Wiffen

Phil is an IT Professional working in Cambridge, England. He generally blogs about useful solutions that he comes across in his work/play.

2 replies on “Windows XP won’t hibernate: Insufficient System Resources Exist to Complete the API”

I’m about to download this for my laptop now. Thanks for the pointer.

I guess they might not have released it as a general windows update if it is only affecting a very small number of machines. Hard to tell really. I often find the knowledge base articles a bit lacking in details!

I truely appreciate you finding this and making it possible for me to Hibernate. I can’t live without it and when I upgraded my RAM to 2.0 GB on my laptop and the system stopped working (hibernation), I was just about ready to go back to the lower memory. I hope this works.

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