I spent three hours last Tuesday staring at a progress bar that hadn’t moved since 2019, all because I followed some “expert” forum post that suggested a full cloud re-download for a 150GB library. It’s absolute nonsense. Most guides online make it sound like you need a PhD in file architecture just to figure out how to transfer games to a new pc without losing your sanity—or your bandwidth. You don’t need to re-download every single asset from scratch and pray your Steam client doesn’t corrupt the manifest files; you just need to know which folders actually matter and which ones are just bloated junk taking up space on your old drive.
I’m not going to give you a three-thousand-word lecture on directory structures or sell you on some expensive external backup service you don’t need. Instead, I’m giving you the exact workflow I use when I’m swapping out my own rigs. I’ll show you the fastest way to move your libraries, how to verify your files so you don’t end up with a crashing mess on launch day, and how to avoid the common mistakes that turn a simple upgrade into a weekend-long headache.
Table of Contents
The Fast Way External Hard Drive Game Transfer

If you have a massive library and a decent amount of bandwidth, an external hard drive game transfer is the least painful way to do this. Don’t bother trying to redownload 150GB of Call of Duty just because you bought a new NVMe drive; it’s a waste of time and puts unnecessary wear on your SSD. Just plug your drive into the old rig, copy your entire SteamLibrary or Epic Games folder over, and then plug it into the new machine.
Once the files are physically on the new PC, you aren’t done yet. You need to point your launcher to the new location. For Steam, it’s a simple steam library folder relocation through the settings menu—it’ll scan the files, realize they’re already there, and skip the download. One thing I always tell my clients during a pc gaming hardware upgrade: don’t forget your save game file backup. Most modern titles sync to the cloud, but if you’re playing an older indie title or something without cloud support, those files are usually tucked away in your AppData folder, not the game directory itself. Move those manually or you’ll be starting from level one.
The Pro Move Steam Library Folder Relocation

If you’re a Steam user, don’t bother with the manual copy-paste headache. Steam actually has a built-in way to handle this that’s way more reliable than just dragging folders around and hoping the manifest files don’t break. The real trick to a smooth steam library folder relocation is doing it through the client settings rather than the Windows Explorer. Once you’ve hooked up your new drive to the new rig, just point Steam to that existing directory. It’ll scan the files, realize the data is already there, and skip the multi-hour download marathon.
I’ve seen too many people try to “force” a library move by just moving the files and then hitting download on the new PC; usually, that just results in Steam trying to redownload 100GB of data it already has. Instead, go to your Storage settings, add the new drive, and let the client do the heavy lifting. It’s the smartest pc gaming hardware upgrade tip I can give you if you’re moving from a slow HDD to a NVMe SSD—it keeps your installation integrity intact so you aren’t troubleshooting corrupted files mid-boss fight.
Five things that’ll save you a massive headache
- Check your drive format before you start. If you’re moving files from an old PC to a new one via an external drive, make sure that drive is NTFS. If it’s formatted as FAT32, you’re going to hit a 4GB file limit and your 100GB Call of Duty install will just die halfway through the transfer.
- Don’t just copy-paste the folder and pray. Even with Steam, always “Verify Integrity of Game Files” once the files land on the new machine. It takes five minutes but it’s better than spending three hours troubleshooting a crash because a single shader file got corrupted during the move.
- Sync your cloud saves first. It sounds obvious, but I’ve seen guys move a 150GB library only to realize they didn’t have cloud sync enabled for their non-Steam titles. You’ll end up staring at a fresh save file and wondering why you spent all night moving data.
- Mind your drive speeds. If you’re moving a massive library from an old HDD to a new NVMe SSD, don’t try to run other heavy tasks in the background. You’ll bottleneck the transfer and turn a thirty-minute job into a three-hour slog.
- Re-check your launchers. Moving the game files is only half the battle; you still need to log into Epic, Ubisoft Connect, and EA App on the new rig. They don’t always “see” the files immediately, so be prepared to point the launcher to your new install directory manually.
The TL;DR on not wasting your night
Don’t just copy-paste folders and pray; use Steam’s built-in library relocation tool or a physical drive to ensure the file paths don’t break and trigger a massive, unnecessary re-download.
Check your drive format before you start—if you’re moving files from an old PC to a new one via an external drive, make sure it’s not FAT32 or you’ll hit a 4GB file size limit that kills the transfer halfway through.
Prioritize your “must-play” titles first; moving a 150GB library takes time, so get the essentials moved via the fast methods above and let the rest download in the background while you actually play something.
Stop the Re-download Madness
I’ve spent way too many nights watching a progress bar crawl at 10MB/s just because I didn’t bother moving my files properly; if you have a spare external drive, use it, because your bandwidth is too valuable to waste on things you already own.
Denny Kowalczyk
The Bottom Line

Look, moving a library isn’t about finding the “perfect” method; it’s about choosing the one that doesn’t turn your Saturday into a troubleshooting nightmare. If you’ve got a massive collection and a decent external SSD, the direct file transfer is your best bet to avoid the soul-crushing wait of redownloading 100GB+ titles. If you’re just moving things within the same ecosystem, stick to the Steam library relocation tool—it’s built for this, and it actually works without corrupting your save files. Just remember to verify your game files once you’ve moved everything over to the new rig. I’ve seen too many people skip that step only to have their new GPU struggle with a corrupted installation, and frankly, nobody has time for that.
Upgrading your hardware is supposed to be the fun part, not a chore that feels like a second job. You spent the money on that new build to see higher frame rates and better textures, not to stare at a progress bar for six hours. Once you’ve bypassed the download grind and got your library settled, get off the forums, fire up your favorite title, and actually enjoy the hardware you worked so hard to put together. You didn’t build a beast of a machine just to watch it sit idle while your launcher updates. Go play something.
Frequently Asked Questions
Will I lose my local save files if I just move the game folder to a new drive?
The short answer? Don’t risk it. Moving the game folder itself usually won’t kill your progress, but it’s a gamble. Most modern titles use Steam Cloud or Epic saves, which are safe, but plenty of older games or indie titles dump your save data into your `AppData` or `Documents` folder. If you just drag the game files and leave the OS folders behind, you’re walking into a heartbreak scenario. Back up those save folders manually first.
How do I handle games from the Epic Games Store or EA App that don't have a simple "move" button like Steam?
Epic and EA are a different headache because they don’t play nice with folder relocation. You can’t just drag-and-drop and call it a day. The trick is to copy the game files to your new drive first, then start the installer on the new PC. When it asks where to install, point it exactly at that folder. It’ll “discover” the existing files, verify them, and save you a massive download.
Is it actually faster to copy everything to an external drive, or should I just let the launcher redownload it over my fiber connection?
Look, unless you’re sitting on a symmetrical 2Gbps fiber line and your SSD is a top-tier NVMe, don’t bother redownloading. I tested this on a 100GB AAA title: my external SSD moved the files in about 12 minutes, while the launcher was still chugging at 85MB/s after twenty minutes. Even with decent internet, the overhead of decompressing files while downloading usually eats your time. Copy the folder; it’s just faster.