Spare Your SSD by Installing Metro Apps to Another Drive
Since SSDs are becoming increasingly affordable and commonplace, computer enthusiasts have been adding them to their computers in greater frequency. And for those who dare, RAIDed configurations yield even more insane speeds (albeit without TRIM on all but a handful of SSD and chipset combinations). However, because they are still somewhat expensive, most buy smaller SSDs and a larger storage HDD. With the release of Windows 8, came the Windows App Store. This by default installs Metro Apps to the main drive. This can fill up a SSD rather quickly, and now there is a method to get around it.
XDA Recognized Developer GoodDayToDie has written up a tutorial on how users can get Metro Apps to install to a different hard drive so that the SSD doesn’t have to hold all of those apps. Initially, it was an answer to a question asked by XDA Senior Member trettet.
The method isn’t time consuming or very difficult. Fans of the command prompt should have no trouble whatsoever. Because Windows 8 doesn’t give users the option to choose which drive to install apps to, users have to create a symlink. They copy the original Metro Apps folder to the other hard drive, delete the old one on the C Drive, then create a symlink to the newly copied folder on the other hard drive. From then on, Metro Apps should be installed on the other drive.
For all the instructions, check out the original thread.