Overwatch's official storage figure on PC (Windows) is 50 GB of available space, and Blizzard Support prints it in a single table cell that spans both the Minimum and Recommended columns. That number is a free-space requirement, not a measured size for the installed game, and none of the official pages checked for this guide gives an actual installed size. Everything below reflects the Blizzard Support and Steam store pages as checked on October 6, 2026. Many players still search for the game as Overwatch 2, but Blizzard Support and Steam both title it simply Overwatch. This guide covers PC only, so console storage is not included. If your bigger worry is how much room your recordings will take on top of the game, how to reduce game recording file size covers that side.
What Each Official Source Says About Storage (Checked October 6, 2026)
| Official source | What it states | How to use it |
|---|---|---|
| Blizzard Support, "Overwatch System Requirements" (article 255147) | The Storage row for Windows reads "50 GB available hard drive space", in one cell merged across the Minimum and Recommended columns. | Treat it as the official baseline. There is no separate recommended storage value. |
| Steam store page for Overwatch, System Requirements | Minimum storage and Recommended storage are both "50 GB available space". Only Windows is listed. | Cross-check it if you install through Steam. |
| Blizzard, "Overwatch Error: Insufficient Disk Space (PC)" | Describes an error that appears when the computer's primary hard drive lacks room to temporarily store game files. | Free up space on your C:\ drive first, then uninstall and reinstall if the problem persists. |
| Blizzard, "Insufficient Disk Space" (Battle.net desktop app) | Says the error occurs when a drive runs low on space or when the app cannot read the drive because of a permission error. | Its order: free space on the target drive, install to an internal drive, allow Blizzard apps in security software, then try a new administrator account. |
| Values missing from these pages | An actual installed size, growth after updates, and any recommended free space beyond 50 GB are not stated anywhere above. | This guide leaves those numbers out. Recheck the official pages if you need a current figure. |
The Verdict: Plan Around One Official Number
Only one official number exists to plan around: 50 GB of available space. Neither Blizzard Support nor the Steam store lists a larger recommended storage value or a free-space buffer, so this guide does not invent one, and it does not quote a measured installed size either. The official pages also never explain why a game's footprint might change over time, so there is no speculation about that here. The practical habit is simple: open the official Storage row again after a big update and see whether the figure still reads the same. How much disk your recorded footage uses is a separate matter from the game's own footprint, and the PUBG recording storage guide covers managing space on the recording side.
How to Check Storage and Handle Disk Space Errors (Windows)
- 1Read the Storage row in Blizzard's requirements table — The Blizzard Support article Overwatch System Requirements lists the minimum system requirements for Windows in a table. Its Storage row reads 50 GB available hard drive space, in one cell shared by both columns, so there is no larger recommended value to hunt for. Blizzard's support system shows the article as updated on August 10, 2026.
- 2Compare it with the Steam store's System Requirements — If you install through Steam, scroll to System Requirements on the Overwatch store page and read the Storage line. Both Minimum and Recommended show 50 GB available space, and the page lists Windows only. If the two sources ever read differently, trust Blizzard's own support article first, since Blizzard is the developer.
- 3Check free space in Windows before installing — Microsoft's "Free up drive space in Windows" page explains that on Windows 11 you can open Settings > System > Storage to see how much space is used, use Cleanup recommendations to clear temporary and system files, and turn on Storage Sense. It also covers moving personal files to other storage, and Advanced storage settings lets you change where new content is saved. On Windows 10 it points to Storage Sense and Disk Cleanup. Confirm that both your target drive and your C:\ drive have at least 50 GB free.
- 4Follow Blizzard's order if a disk space error appears — The article Overwatch Error: Insufficient Disk Space (PC) says the error means the primary hard drive lacks room to temporarily store game files. It tells you to free up space on the C:\ drive and, if the error continues, to uninstall and reinstall the game. The Battle.net desktop app article Insufficient Disk Space adds that the app may have trouble writing to an external hard drive, so install to an internal one. It also says to add Blizzard applications to the security software exception list, and to try a new administrator account if permissions are the issue.
- 5Uninstall and reinstall through Battle.net if needed — In the Battle.net desktop app, select the game icon, open the drop-down arrow next to the Play button, and choose Uninstall. To reinstall, select Install from the game tab. Blizzard notes that player data is saved on its servers. Manually deleting folders is not covered in this guide.
Pre-Install Space Checklist
- These values apply to PC (Windows). Console storage is outside what this guide verified.
- The official 50 GB is an available-space requirement, not the installed size.
- Check the free space on both your target drive and your C:\ drive in Windows Storage.
- Install to an internal drive when possible. Blizzard warns that the app may have trouble writing to an external hard drive.
- Make sure your security software is not blocking Blizzard applications.
- After a big update, or after a long gap, reread the Storage row in Blizzard's requirements article.
Your Overwatch Recordings Need Space on Top of the Game
The 50 GB the game asks for and the room your recordings take up are separate questions. The official storage figure does not include any video you capture, so footage needs its own space, and DOR does not promise a GB-per-hour number. DOR is a free Windows app: as the DOR Overwatch page explains, it detects Overwatch automatically, records the full match as an mp4, and creates highlight clips for kills automatically. Recordings are saved as mp4 files in the app library, so you can see what has piled up there, and you can also trim a scene by setting its start and end, then share it as a dor.gg link. For a look at which PC specs suit recording on top of gaming, continue with the recommended specs for game recording.
Official Sources
Checked October 6, 2026 against these official pages: Blizzard Support: Overwatch System Requirements (shown as updated August 10, 2026), Steam store: Overwatch, and Blizzard Support: Overwatch Error: Insufficient Disk Space (PC) (shown as updated February 5, 2026). The Battle.net app article Insufficient Disk Space and Microsoft's Free up drive space in Windows page were also used. Values can change, so recheck before you install.
