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I don't know much about perfmon, but I see that Win XP has an option "Available MBytes" under "Memory" after right clicking the graph and clicking "add counter". As shown in this screenshot
Where is the Available MBytes option in Windows 7 perfmon, that is in Win XP perfmon?
In Windows 7 perfmon I see this, screenshot below, but I cannot find an "Available MBytes" option, and I see no Memory category.
Added
Ass you can see below, there is no memory category
barlop
Posted 2016-06-29T14:51:08.603
Reputation: 18 677
On Windows 8.1, when I expand the "Memory" category I see "Available MBytes" near the top and can add it. (I don't have any Windows 7 system handy.) Do you not see that? (Your screenshot doesn't show either way.) Screenshot: https://i.stack.imgur.com/MDAN2.png
– a CVn – 2016-06-29T14:54:50.327@MichaelKjörling see screenshot added, there seems to be no memory category listed – barlop – 2016-06-29T15:12:41.133
Well, that's definitely a bit more odd. Just for completeness' sake, you have tried as at least local administrator, right? – a CVn – 2016-06-29T15:16:12.540
@MichaelKjörling I don't think that's right as you don't run perfmon as admin, though I think perhaps a program that works with counters might have to be admin e.g. if it's creating a category and creating a counter.. though i'm no expert. But certainly perfmon doesn't have to be run as administrator. – barlop – 2016-06-29T15:34:14.080
this may be the answer
– barlop – 2016-06-29T15:35:29.047lodctr /ras mentioned http://stackoverflow.com/questions/17980178/cannot-load-counter-name-data-because-an-invalid-index-exception I then tried running a program that creates a category and a counter and increments the counter, running that program as administrator, and then I started perfmon and saw it. I think it was the lodctr /r that fixed the issue.Running as admin (Windows 7 Home Premium 64 bit) I have Memory > Available MBytes showing. https://i.imgur.com/NnxYCAf.png
– DavidPostill – 2016-06-29T15:36:00.063@DavidPostill and what about when not running perfmon as admin? – barlop – 2016-06-29T15:36:20.737
It's here too (Windows 7 Pro 64-bit, not run "as administrator"). Your WMI and/or Performance Counters may be corrupted..? – Ƭᴇcʜιᴇ007 – 2016-06-29T15:36:41.280
@barlop I don't have a non-admin account ... – DavidPostill – 2016-06-29T15:36:47.970
1@DavidPostill well, if you did then you could test the theory that admin has anything to do with it. I think, as techie said, it's nothing to do with it. Once I ran that lodctr /r command it fixed the category list. starting perfmon regularly is fine it shows them now. And I don't think running it as administrator would've made any difference. – barlop – 2016-06-29T15:52:58.303
@barlop <shrug> Too much effort. That's why it's a comment not an answer :) – DavidPostill – 2016-06-29T15:54:16.210