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#11
I would recommend not to make any of them Dynamic Disks. You can change the Simple Basic disk size easily.
Your OS partition is getting full because of page filing and System Restore points. These are both good things, that can be very helpful if needed.
You can limit the size of the space used for System Restore. I would recommend minimum of 15GB.
System Protection - Change Disk Space Usage
If you are keeping your data and programs elsewhere, you can make your OS partition 30GB if HD space is needed.
Can you tell us your HD and partition layout?
Or post a snip of your Disk Management.
Snipping Tool
How to Post a Screenshot in Seven Forums
You can try to increase the OS partition with Disk Management but, if the next partition has any files it will likely not work.
Many people have used the free partition manager, this works very well and will let you move all partitions without loosing any data. As always, before doing any partition adjustments, backup your HD first.
Partition Wizard
This is listed in the FREE Great Programs for Windows 7. All of these free programs have been tested by Seven Forums members to work well with Win7.