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Mac Forum / Applications / Virtual PC / October 2005VM increases in size slightly..why?
I'm using VPC 7 with XP Home SP2. I have AVG AV installed and use Erasure successfully to zero data and then reclaim disk space. I'm just wondering however, my VM size was 2.02 GB yesterday I accessed the net and browsed to my .Mac sign in page which I then bookmarked and saved as my default "home" in IE. I then browsed to MSN.com and bookmarked that as well. In my favourites folder I created 2 new folders one called Apple the other Microsoft. Now I have cookies turned off in IE and I haven't downloaded anything. I then did a virus scan and everything came up safe and clean. But when I checked the size of my VM is has increased from 2.02GB to 2.06GB, how could that be?? >I'm using VPC 7 with XP Home SP2. I have AVG AV installed and use >Erasure successfully to zero data and then reclaim disk space. [quoted text clipped - 7 lines] >and everything came up safe and clean. But when I checked the size of >my VM is has increased from 2.02GB to 2.06GB, how could that be?? Because every time you run Windows, files are changed, and replaced. This as well as the paging file are modified every time you run Windows.  SignatureCheers, Steve Jain, Virtual Machine MVP http://www.essjae.com/vpc/vpc.htm "This posting is provided "AS IS" with no warranties, and confers no rights. You assume all risk for your use. I am not am employee of Microsoft." > Because every time you run Windows, files are changed, and replaced. > This as well as the paging file are modified every time you run > Windows. Oh?? Is this a problem? Can I reduce the size increase of this process or should I just do my periodic maintenance of Disk Utility (cleanup or what ever it's called), Defragmentation, Erasure, Reclaim Disk Space? Your virtual machine will grow with each session. When it gets to 15GB, you will have a problem on your hands and will need to run Eraser and reclaim unused disk space. Obviously, you would be better served if you did it before it gets that large. Now, the question is: How long will it take you to get to 15GB? If you're not installing a lot of applications, downloading huge music files, etc., it should take you a very long time to get to that critical point. Do you want to go thru defrag and Eraser just to reclaim a few MB of disk space? I wouldn't but it's your choice..... > Your virtual machine will grow with each session. When it gets to 15GB, > Now, the question is: How long will it take you to get to 15GB? If > you're not installing a lot of applications, downloading huge music > files, etc., it should take you a very long time to get to that > critical point. Do you want to go thru defrag and Eraser just to > reclaim a few MB of disk space? I wouldn't but it's your choice..... Well obviously I won't be doing that for a few MB ??? I was just wondering why the increase is all as I haven't installed anything and have no intention doing so. You've answered that question successfully. I'm guessing, being MS, there is no way to prevent or lessen this occurring in the first place (which was my second question). >> Your virtual machine will grow with each session. When it gets to 15GB, >> Now, the question is: How long will it take you to get to 15GB? If [quoted text clipped - 8 lines] >I'm guessing, being MS, there is no way to prevent or lessen this >occurring in the first place (which was my second question). No, you can't prevent Windows from updating files each time it boots up. FYI, Mac OS X does this as well, as well as manages a swap file. The only reason you see this happening in Windows is because its emulated. You won't notice this behavior on a physical Windows computer, just like you don't on a Mac. The only way you could except to see this behavior reduced is if MS completely rewrote the Windows file system for VPC-Mac, which is probably less than 1% of Windows sales. SignatureCheers, Steve Jain, Virtual Machine MVP http://www.essjae.com/vpc/vpc.htm "This posting is provided "AS IS" with no warranties, and confers no rights. You assume all risk for your use. I am not am employee of Microsoft." |
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