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Windows 7: Missing memory

12 Jan 2011   #1
sheldonlg

Windows 7 Professional 64 bit
 
 
Missing memory

I have 4GB of memory for my machine. When I run a virtual PC, it is set up to have 1Gb of the four. Even when first starting, it shows usage of about 2.5GB in the "Perfomance" tab of the Task Manager. After not too long, it grows to a little over 3GB with the Virtual PC on. When I sum all the memory usage that is displayed in the "Processes" tab of the Task Manager (sorted in descending order of usage), I get only about 600MB being used. Where is all the missing memory? It really slows my machine. Here is a snapshot of [most of] the Task Manager screen.




Attached Thumbnails
-taskmanagermemory.jpg  
My System SpecsSystem Spec
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12 Jan 2011   #2
whs
Microsoft MVP

Vista, Windows7, Mint Mate, Zorin, Windows 8
 
 

Have a look into Resource Monitor > Memory tab. The colored bar will give you a better view. If you post a snip of this color bar, we can help you decypher it.
My System SpecsSystem Spec
12 Jan 2011   #3
sheldonlg

Windows 7 Professional 64 bit
 
 
Here is the bar:

I used Registry Mechanic and I went through the cleaning and compaction. That required a reboot, so now more is showing as free as I just brought the system up and started the virtual machine. However, even though not maxed out yet, there still seems to be a lot of memory missing. I have the memory ordered in descending order by "Working". I also see 770MB in "Hardware Reserved".


Attached Thumbnails
-resourcemonitor.jpg  
My System SpecsSystem Spec
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12 Jan 2011   #4
whs
Microsoft MVP

Vista, Windows7, Mint Mate, Zorin, Windows 8
 
 

The Hardware reserved could be from an on-board graphics card. For the rest, there is no accurate way to count the beans. You may try WinDirStat. Make sure you highlight the drive you want to inspect before you say OK. But that does not show the shadowstorage. For that you have to issue this command in elevated Command Prompt: vssadmin list shadowstorage

The shadowstorage plus what WinDirStat shows should add up to the 2.24MBs shown by the green line.
My System SpecsSystem Spec
12 Jan 2011   #5
sheldonlg

Windows 7 Professional 64 bit
 
 

The list shadow storage came up with statistics for drive C. The windirstat said it was utility to look at directories. My problem is that my RAM is being used to the max. I have 4GB of ram. the list shadowstorage said that 9.2GB (0%) had been allocated.

Are we talking about the same thing?
My System SpecsSystem Spec
12 Jan 2011   #6
whs
Microsoft MVP

Vista, Windows7, Mint Mate, Zorin, Windows 8
 
 

Quote   Quote: Originally Posted by sheldonlg View Post
The list shadow storage came up with statistics for drive C. The windirstat said it was utility to look at directories. My problem is that my RAM is being used to the max. I have 4GB of ram. the list shadowstorage said that 9.2GB (0%) had been allocated.

Are we talking about the same thing?
I am awfully sorry. I was sidetracked and posted the wrong thing. Nevertheless, that can be useful for the disk - LOL.
My System SpecsSystem Spec
13 Jan 2011   #7
sheldonlg

Windows 7 Professional 64 bit
 
 

Can anyone else offer a suggestion? I have no idea why, even after allowing for a full 1Gb for the virtual machine and the 770MB for the hardware, why the rest shows an additional 2.2 GB as opposed to the sum of all the processes which add up to about 500MB.

Could it be bad memory and if I were to replace the memory it might be better?
My System SpecsSystem Spec
13 Jan 2011   #8
whs
Microsoft MVP

Vista, Windows7, Mint Mate, Zorin, Windows 8
 
 

Look into Resource Monitor > Memory tab. That gives you a better picture of the RAM usage. Adding processes up is not going to tell you anything.
My System SpecsSystem Spec
14 Jan 2011   #9
sheldonlg

Windows 7 Professional 64 bit
 
 

I already posted the results from the resource monitor. It is the third post in this thread.
My System SpecsSystem Spec
14 Jan 2011   #10
FliGi7

XP / Win7 x64 Pro
 
 

So, you have 770MB reserved, which we're going to guess is an onboard video card (can you confirm?). It's not unheard of for the OS to take ~1-1.3GB of memory (mine does, consistently) plus the 1 GB you allocated for your VM. That comes within a couple hundred MB of the 3GB it's showing as taken. I'm not seeing much wrong here.
My System SpecsSystem Spec
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 Missing memory




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