I am reading that many people who are having problems with Mist gobbling up hard drive space (in my case 135 GB - I'm serious - there should be a 5 inch read warning when you download MIST about this - and of course it nearly killed my 251 GB hard drive) that they should use "geth removedb" to fix this. Unfortunately no one ever explains where or how to download this tool OR how to use it. Is there a support site?
You can delete the
chaindata folder, which should be located somewhere here:
OR using the
geth, download and install it here and run:
IMPORTANT: Don't delete
keystore folder. Back up your keystore file.