If you’re a regular Genshin Impact player, you’ve probably noticed the game’s file size ballooning with every new region update, character banner, and event drop. It’s not uncommon for the PC install to top 100GB these days, which can eat up a huge chunk of space on your main SSD or hard drive, especially if you have multiple games installed at once. I’ve been there myself, staring at my storage meter showing 99% full after the Fontaine update dropped, and I almost uninstalled three other games before I tried this workaround. If you’ve found yourself asking can I put Genshin Impact on a flash drive to free up space on your primary drive, you’re not alone. Thousands of players look for this workaround every month to avoid uninstalling other games or paying for expensive internal storage upgrades. We’ve tested this method across multiple flash drive types and PC setups to bring you all the details you need to decide if it’s right for you, and how to pull it off without breaking your game install.
Can I Put Genshin Impact on a Flash Drive? Compatibility Rules First
The short answer is yes, you absolutely can, but only if you use the right type of flash drive and follow a few basic rules to avoid performance issues or corrupted files. Cut corners here, and you’ll end up waiting 10 minutes just to load the login screen, or worse, lose your game progress entirely. Your flash drive needs to be formatted to NTFS or exFAT first, because the older FAT32 file system can only handle individual files up to 4GB, and Genshin Impact has multiple game files much larger than that. Formatting only takes a minute, but make sure you back up any existing files on the drive first, since formatting will erase all data on it.
A minimum read speed of 100MB/s is non-negotiable for a playable experience. I tested this first with an old 128GB USB 2.0 drive I had lying in a desk drawer, and it took 12 minutes just to get to the login screen, then crashed immediately when I tried to teleport to Sumeru. You’ll also need at least 128GB of total space on the drive, even if the current install is only around 105GB, because you need extra room for future version updates that can add 10GB or more each time. If you only have a 64GB drive, this method won’t work for you, no matter how much you trim old game files.
Step-by-Step Process to Move Genshin Impact to a Flash Drive
Don’t just drag and drop the game folder directly to your flash drive, that will break the launcher’s file path recognition and you’ll be stuck re-downloading the entire game. Follow these simple steps instead to make the transfer seamless:
- First, locate your existing Genshin Impact install folder. You can find this by opening the Genshin Impact launcher, clicking the settings gear in the top right, selecting "Game Install/Update", and copying the file path listed under "Installation Path".
- Plug in your formatted flash drive, then copy the entire Genshin Impact game folder from your original install location to the flash drive. This can take 10 to 30 minutes depending on your flash drive speed, so don't unplug the drive mid-transfer even if it looks like it’s frozen.
- Once the transfer is complete, go back to the launcher settings, click "Change Game Path", and select the new Genshin Impact folder on your flash drive. The launcher will run a quick 2 to 3 minute file verification to make sure all files are intact and no data was corrupted during transfer.
- Run a quick test launch to make sure the game loads correctly, and try teleporting between a few regions and opening your inventory before you delete the original game folder from your main drive.
Always keep a backup of your game folder on your main drive until you confirm the flash drive install works perfectly, so you don’t have to re-download the entire 100GB+ file if something goes wrong with the transfer. If you use the Epic Games Store version instead of the official HoYoverse launcher, the process is almost identical, you just change the install path in your Epic Games library settings instead of the Genshin launcher, and run the verification from there.
Pros and Cons of Running Genshin Impact From a Flash Drive
This setup works great for some players, but it’s not the right fit for everyone, so let’s break down the biggest advantages and downsides to help you decide. The biggest pro is obviously that it frees up huge amounts of space on your main drive, which is perfect if you have a small 256GB or 512GB SSD for your operating system and core work programs. It’s also far cheaper than upgrading your internal SSD, especially if you only play Genshin a few times a week and don’t want to waste premium storage space on it. You can also take your game install with you to play on friends’ PCs without downloading it again, as long as they have the Genshin launcher installed on their device.
There are some pretty significant downsides to consider too. First, load times will be slower than an internal SSD, even with a high-end USB 3.2 flash drive. In my testing, teleport load times were around 2 to 3 seconds longer than on my internal NVMe SSD, which isn’t a huge deal for casual players, but can be annoying if you grind artifacts or domains constantly. You risk corrupting your game save or install if you unplug the flash drive while the game is running, or if the drive gets damaged or lost. Low-quality flash drives will also wear out much faster if you run a game from them regularly, since they’re not designed for constant read/write operations the way internal drives are.
Top Tips to Get the Best Performance From a Flash Drive Install
If you decide to go ahead with this setup, there are a few small tweaks you can make to get the smoothest possible experience and avoid common issues. First, invest in a high-quality USB 3.2 Gen 1 or higher flash drive, ideally one with a rated read speed of 200MB/s or faster. These only cost $5 to $10 more than cheap generic drives, and make a massive difference in load times and overall stability. Make sure you plug the drive directly into your PC’s motherboard USB port, not a USB hub or the front case ports, which often have lower speed limits or inconsistent power delivery.
Enable cloud save sync in the Genshin launcher before you start using the flash drive install, so your progress is backed up to HoYoverse’s servers even if your drive gets corrupted or lost. Don’t use the same flash drive for other large file transfers or other games if you can avoid it, because filling it up completely will slow down read speeds significantly. Leave at least 20% of the drive’s total space empty for best performance, and run the launcher’s file verification tool once a month to catch any corrupted files early before they cause crashes.
At the end of the day, asking can I put Genshin Impact on a flash drive comes down to your personal needs and the quality of the drive you have access to. If you’re a casual player short on internal storage, or you want to bring your game install between multiple locations, this method works perfectly as long as you follow the compatibility rules and setup steps we outlined. If you’re a competitive player who grinds domains or Spiral Abyss constantly, you might be better off keeping the game on your internal SSD for the fastest possible load times. No matter what you choose, always back up your save data and verify your game files after any transfer to avoid losing hours of progress.