Explanation for SpiderOak Purge Spideroak keeps an unlimited number of previous versions. This doesn't cause a problem in most cases, but can be an issue for files that change frequently, particularly if you backup up multiple times a day or the files don't compress very well. So I've created a batch file to handle this for you. You do not need to run it often, but maybe once or twice a year it can save you a lot of space. Most likely you can just download the file and run it once or twice a year to help clean up your Spideroak extra previous versions. It will keep the daily backups copies for 10 days, weekly for 10 weeks, monthly for 12 months and one a year thereafter. This should be more than enough for most purposes. If you want to know what it does, here is the explanation of the 6 lines. ---------------------------- c:\"Program Files"\SpiderOakONE\SpiderOakONE.exe --shutdown {This line opens the command window so you can monitor things and shuts down Spideroak} ---------------------------- @echo This will take a while, please wait for a report and further instructions {This line just lets you know that it will be reporting on what it is doing} ---------------------------- c:\"Program Files"\SpiderOakONE\SpiderOakONE.exe --purge-historical-versions d10,w10,m12,y --verbose {This is the purge line. It is going to purge historical versions but keep versions daily for 10 days (d10) weekly for 10 weeks (w10) monthly for 12 months (m12) and then 1 a year after that. (y) and the --verbose means to report everything it does.} ---------------------------- @echo now I will restart Spideroak {Lets you know it will restart Spideroak} ---------------------------- start "" c:\"Program Files"\SpiderOakONE\SpiderOakONE.exe {Starts Spideroak up again} ---------------------------- exit {closes the command window.} ---------------------------- I suggest emptying your SpiderOak trash after this. The trash is the backup copies of all the files you have deleted from your computer or moved to another place. Be careful you don't delete anything you accidentally removed. This is accessed from the manage tab by clicking on the deleted items folder in the left panel. It can take an hour or so and perhaps a restart for your local spideroak program to be synchronized and reflect the purged files, so you will not see the space reduction immediately. Also, you might as well upgrade to the latest version at: https://spideroak.com/opendownload as of April 20, 2017, that was version 6.1.9 You can download this little batch file here: https://steveshank.com/tools/SpideroakPurge.bat