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Windows 7: Dump size, pagerfile.sys, etc.

30 Sep 2011   #1

Windows 7 x64 Pro
Dump size, pagerfile.sys, etc.

I've had a couple BSODs lately and could not find the dumps even though I watched the BSOD processing create them. Turns out I had requested a full memory dump and did not have a large enough pagefile. (At least I assume that's what went wrong.) I've switched to Small memory dump now (and no longer even see an option for full). But I'm worried that this was the wrong choice.

If I increase the size of pagefile will I get the full dump option back?

I've got 12 GB ram. I read somewhere I need a 13GB pagefile for this. Yes?
(System managed size picked 8490 MB even though is says 12285 MB is recommended.)

I don't understand the "Initial" vs. "Maximum" settings for pagefile. Is the initial value automatically allocated when Windows starts and then dynamically expanded (if needed) up to max? I suspect I don't need paging space except when I need a full dump and then I'd need the 12-13 GB. Is there I reason I should not set both to whatever is needed for the full memory dump?

I've got a relatively small SSD C: drive. Should I move pagefile to a hard drive if I increase it to accommodate a full memory dump?

My System SpecsSystem Spec


 Dump size, pagerfile.sys, etc.

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