Some of you may learn from this or find it useful.

When I bought this computer I only allocated 40 GB to my system drive. Big mistake, and I've had to juggle system files a lot, but I've gotten by with it... Until today.

This week, I decided to upgrade - One upgrade was to double the size of my RAM. When booting it up after, I immediately found that my system volume was suddenly full. Disk cleanup only freed a gig, and the file sizes on the drive only added up to half...