Storage Management for Blizzard Games

Last Updated: Mar 16, 2025 | Gaming

Blizzard Game Downloads

Sometimes, you get errors with your Blizzard games or simply want to uninstall a game to take a break. Storage management for Blizzard games takes a couple of different forms, which we will explore in this article.

But first, you probably wonder, "Do I have to re-download all of my games?" The answer is usually no.

Delete Blizzard Cache Folders

A corrupted cache folder can cause issues with Blizzard titles. This can happen sometimes. You can safely delete this folder, as it will not have any effect on your game data.

Deleting your game cache may solve additional issues caused by outdated files.

Deleting Blizzard Game Cache on Windows

Close the Blizzard applications in this order - game (or game launcher), battle.net, and then the Blizzard Agent. More on this below.

  1. Press Ctrl+Shift+Esc to bring up the Task Manager.
  2. Click the Processes tab.
  3. Select agent.exe and click End Process.
  4. Paste the game folder path into Windows Explorer or Windows+R:
    • Windows XP: C:\Documents and Settings\All Users\Application Data\
    • Windows Vista/Windows 7/Windows 8: C:\ProgramData\
  5. If a Blizzard Entertainment folder exists in this directory, highlight the folder and press the Delete key or right-click it and select Delete.
  6. Relaunch the game normally.

Deleting Blizzard Game Cache on Mac

  1. Using Finder, click Macintosh HD.
  2. Navigate to the /Users/Shared/Blizzard directory.
  3. Right-click the Battle.net folder and select Move to Trash.
  4. Relaunch the game.

Backing Up Blizzard Games

Let's say you get a new hard drive, computer, or operating system, and you want to install your Blizzard games on your new setup. You can actually copy your game directories to another storage device, such as an external hard drive.

This is great news since WoW, HS, SC2, and D3 take up a combined space of 55GB! Then, you only need to copy the files back to your new location.

Once you open your Battle.net desktop app, point the app to the location of the games if it hasn't already automatically detected them. The games will then be counted as "installed."

You shouldn't have to download much more data, if anything at all.