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ExploreWindows 10/11 has a hidden feature called "Compact OS." CompactGUI gives it a visual interface.
As of May 2026, the PC version of Genshin Impact is a massive game, often requiring between of storage space depending on the number of regions and language packs you have installed. If you are looking to "download data Genshin Impact PC highly compressed," it is important to understand that while official downloads are already compressed for delivery, you can further optimize your storage footprint using several in-game and manual methods. Current Storage Requirements (2026)
Assuming you have found a trusted repack (FitGirl/DODI), here is the exact process to install without crashing your PC.
HoYoverse has introduced a feature to delete resources from completed quests, such as cutscenes and audio files that you no longer need.
After completing major story quests, the recorded cutscenes stay on your computer.
Another noteworthy tool is the , a script that installs Genshin Impact without the official launcher. This tool downloads each of the game's 12,000+ files individually rather than downloading a large zip package first, requiring about 90 GB of free space (approximately 60 GB for the game and 30 GB for audio packages). This method is particularly useful for users with unstable internet connections—if a download corruption occurs, the script only needs to retry the individual corrupted file rather than redownloading an entire zip segment. The installer includes multithreaded file downloads using aria2c and verifies every downloaded file for corruption. However, as of 2025, this project has been deprecated and no longer receives updates. Using it may result in compatibility issues with newer game versions, and support is no longer provided.
To use CompactGUI for Genshin Impact:
Click to delete audio and video files from completed quests. Tips for Players with Slow Internet Connections
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Avoid third-party "highly compressed" downloads for Genshin Impact PC. The risks of malware, corrupted files, and permanent account bans far outweigh the temporary data savings. Instead, use the official launcher and manage your in-game voice packs to keep your file size as lean as possible. If you want to optimize your setup further, let me know: Your PC's space Your average internet download speed Whether you are using an SSD or an HDD
Turn off bandwidth-heavy applications like Netflix, YouTube, or Discord while downloading.
Instead of risking malware with unofficial compressed files, you can use built-in, official methods to significantly reduce the download size and storage footprint of Genshin Impact on your PC. Step 1: Utilize the Official HoYoPlay Launcher
The file size of Genshin Impact on PC is approximately 10 GB (uncompressed). However, if you're looking to download a highly compressed version, you might find it around 2-3 GB. This is achieved through compression algorithms that reduce the file size without compromising the game's performance.
This can significantly boost download speeds for some users. Pause/Unpause
To ensure your game is stable and to prevent corrupt files, only use official sources. As of 2026, the game is roughly 110 GB minimum to 150 GB recommended.