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#11
A good utility for displaying folder/file size is "Folder Size" which can be downloaded from;
Folder Size - Freeware file size analysis. Check the directory sizes, folder sizes and file sizes on your computer with this freeware tree size analysis tool.
It is free and provides an easy to use GUI. Additionally, you can use it to delete anything that is unnecessary, which includes CrashDump files.
Just an FYI;Crash dumps are simply copies of whatever was in your system's memory at the time of a crash, used for analysis/debugging purposes. Unless you plan to use them it's prudent to delete them and use the space for other purposes.
HTH