First of all, I use the German version of VMware Fusion 5. So if you encounter any weird words I used, sorry for that but I couldn't find a way to contact the German support (if specific support exists at all).
Today I installed VMware Fusion 5 on my Macbook and updated it to the newest version. Then I installed Windows XP Professional inclusive Service Pack 3 and Windows 7 Ultimate (both in isolated environments) without using bootcamp. (The OS I am using: Mac OS 10.7.5 (Lion)) The virtual machines both run without any problems except for one: When I installed Windows XP, I had to leave 40GB of disk space to WinXP and when installing Win7, I had to leave 60GB to Win7. I don't need that much of disk space for my virtual machines though. I tried to decrease the amount of disk space left behind for WinXP and Win7 ('Settings' -> 'Harddisks' -> 'Virtual Harddisk.vmdk') but I was not able to decrease the amount of 40GB (fpr WinXP) \ 60GB (for Win7). How do I do that? I seem to be able to increase the amount, though. It just won't get lower than 40GB\60GB.
Apart from that, I noticed something strange: When I installed WinXP and left 40GB for this VM, the amount of space on my MacintoshHD went down 40GB. When I installed Win7, though, it did not go down the 60GB used for Win7. What happened here? Besides, I cannot find any data on my MacintoshHD which corresponds to the 40GB I "lost".
Then I got two more questions:
Is the amount of RAM reserved for the virtual machines temporarily unusable by Mac OS while the virtual machine is running or is it a permament reservation so that I cannot use the RAM when I only use Mac OS?
Can I use the space on a usb-stick for a virtual harddisk? If so, can I even use one virtual harddisk for WinXP and Win7? Let's say, I use a 30GB usb-stick, can I use the 30GB as a virtual harddisk that can be used by both, WinXP and Win7?
By the way, I would really like to get advice on how to fix this problem by only using VMware without any other software I would have to download. I have read some tutorials on how to fix this, but they said further software is required. I think it should be possible to do this without any other software and well, hopefully, it will work somehow.
Oh, and one more thing: If I delete a virtual machine, what is going to happen to the disk space left for the VM? Can it be used by Mac OS right away?
Many thanks in advance!
Also, I managed to transfer space which is "not needed" (marked yellow) by WinXP and Win7 to Mac OS. This doesn't seem to be what I'm looking for, though, because I could anly transfer about 1 or 2GB.