Acer Nitro 5 Hard Drive Upgrade Guide

Acer Nitro 5 hard drive upgrades are straightforward: confirm your bays, install the drive cleanly, then initialize it in Windows.

Acer’s Nitro 5 name covers a bunch of AN515 and AN517 models across several years. The storage layout can change from one version to the next, even when the laptop looks identical from the outside. So the best way to avoid a wrong purchase is to treat this as a two-part job: confirm what your exact unit can take, then do the install with a tidy, repeatable routine.

This guide keeps things practical. You’ll learn how to identify your model, tell M.2 from 2.5-inch SATA at a glance, pick a drive that fits your goal, open the bottom cover without chewing up screws, mount the drive, then set it up in Windows. If you’re moving Windows to a new SSD, there’s a cloning checklist that’s built to avoid the “boots sometimes” mess.

Check Your Nitro 5 Model And Storage Bays Before You Buy

Start by getting your exact model code. “Nitro 5” alone is not enough. Look for an AN515-xx or AN517-xx identifier. You can usually find it on the bottom label, on the box, and inside Windows.

Find The Model Code — Flip the laptop over and note the AN515-xx or AN517-xx label so you can match parts to your version.
Confirm What’s Installed — In Windows, open Device Manager, expand Disk drives, and write down what you see (brand + capacity helps).
Check For A Free Bay — If you already have a 2.5-inch drive installed, your add-on path is often an empty M.2 slot.

If you want a model-specific reference straight from Acer, grab the official manual for your exact unit from Acer’s downloads area. This PDF walks through general device layout and can help you confirm labels and hardware areas: Acer Nitro AN515-55 user manual PDF.

Know The Storage Types You’ll See On Nitro 5

Storage shopping gets easier once you split “shape” from “connection.” M.2 is a small stick-shaped form factor. SATA and NVMe describe how the drive talks to the laptop. An M.2 drive can be SATA or NVMe, depending on the drive and the slot.

Drive Type	What It’s Best For	What To Verify
2.5-inch SATA SSD	Big game libraries, quiet bulk storage	Free 2.5-inch bay, SATA cable/bracket, 7mm height
2.5-inch SATA HDD	Large archives at low cost per GB	Free 2.5-inch bay, shock awareness, 7mm height
M.2 NVMe SSD	Fast boot, fast app loads, fast game loading	Slot accepts NVMe, common length is 2280, screw/standoff present

One more heads-up: some Nitro 5 units have the physical 2.5-inch space, yet don’t ship with the cable and bracket. If you open the laptop and see the bay but no connector kit, you’ll need the correct kit for your model before a 2.5-inch drive will work.

Acer Nitro 5 Hard Drive Upgrade Steps With M.2 And 2.5-Inch Bays

This is the hands-on part. Read it once before you start. Then follow it in order. The goal is simple: no stripped screws, no pinched cables, and no boot surprises.

Prep Your Files And Your Work Area

Back Up Your Data — Copy your most valuable folders to an external drive, then open a few files from the backup to confirm they work.
Save BitLocker Recovery Info — If device encryption is on, make sure your recovery key is saved to your Microsoft account or written down.
Gather Tools — Use a small Phillips screwdriver, a plastic pry tool, and a small tray for screws.
Reduce Static — Work on a hard surface, touch grounded metal before you handle parts, and skip thick carpet.

If you’re adding a second drive and keeping Windows on the original drive, you can move to the chassis steps. If you’re replacing the Windows drive, plan your migration first so you don’t end up reinstalling everything from scratch.

Pick Your Upgrade Path Before You Open The Laptop

Add A Second Drive — Install a new SSD or HDD as extra storage, then format it in Windows.
Replace The Boot Drive — Clone your current Windows drive to a larger SSD, swap the SSD inside the laptop, then boot from the clone.
Reinstall Windows Fresh — Install a new SSD, then reinstall Windows from USB and restore your files from backup.

Cloning is usually the easiest route when your current install is stable and you want to keep everything the same. A fresh install can feel cleaner if you’ve had driver weirdness, random crashes, or a packed system that’s been through years of updates.

Open The Bottom Cover Without Damage

Power Down Fully — Shut down from Windows, unplug the charger, and remove USB devices.
Remove The Screws — Keep screw positions organized; some laptops use different lengths.
Lift The Panel Carefully — Use a plastic pry tool along the seam, then work around the edges until the clips release.

Once the cover is off, pause. Look for the storage areas. An M.2 slot looks like a small connector with a screw point a few centimeters away. A 2.5-inch bay area is a wider open space, often with a thin cable route.

Install An M.2 NVMe SSD

Locate The M.2 Slot — Find the connector and the standoff hole that matches your drive length, often 2280.
Insert The SSD At An Angle — Slide the gold edge into the slot, then lower the drive toward the standoff.
Secure The Mounting Screw — Tighten until snug, then stop so you don’t strip the head.

If your Nitro 5 has a thin thermal pad or shield over the M.2 area, put it back the same way it was. Avoid thick pads that press hard on the SSD and flex the board.

Install A 2.5-Inch SATA SSD Or HDD

Confirm The Bracket And Cable — If the bay exists but the cable is missing, you’ll need the correct SATA kit for your model.
Mount The Drive In The Bracket — Align the holes and fasten the screws so the drive can’t slide.
Attach The SATA Connector — Seat it fully; a half-seated connector is a classic “drive not detected” cause.
Route The Cable Neatly — Keep the cable away from screw posts and fan blades so it won’t pinch under the cover.

Before closing up, do a quick visual scan. No loose screws. No cable crossing a screw post. No foam tab in a fan. This tiny check saves the most time later.

Close The Laptop And Confirm Detection

Snap The Cover Back On — Press along the edges so clips seat evenly.
Tighten Screws Evenly — Start each screw by hand, then snug them down in a simple pattern.
Check BIOS Detection — Power on and tap F2 to enter BIOS, then look for the new drive in storage info.

If the BIOS does not list the drive, shut down and re-seat it. An M.2 SSD can sit in the slot yet not be fully inserted. A 2.5-inch drive can look connected while the ribbon is not fully locked.

Initialize And Format The New Drive In Windows

After the laptop boots, Windows may not show the new drive in File Explorer right away. That’s normal. New drives often arrive as unallocated space until you initialize and create a volume.

Microsoft documents the Disk Management steps in a current guide here: Initialize new disks in Disk Management.

Open Disk Management — Right-click Start, then select Disk Management.
Initialize The Drive — Choose GPT for most modern UEFI systems.
Create A New Volume — Right-click unallocated space, choose New Simple Volume, then follow the wizard.
Format As NTFS — NTFS is the standard choice for Windows game and media drives.

After formatting, the drive will show up in File Explorer. Give it a clear name like Games, Media, or Projects so you can spot it quickly when installers ask where to put files.

Make The New Drive Do Real Work

A storage upgrade pays off when you actually use the space. If you leave everything on C:, you’ll still run into update slowdowns and tight free space.

Set Game Install Locations — Add the new drive as a library location in Steam, Epic, Battle.net, or Xbox apps.
Move Large Folders — Shift videos, downloads, and project archives to the new drive to keep C: lighter.
Keep The OS On The Fastest Drive — If you have an NVMe SSD, keep Windows and your most-used apps there.

Move Windows To A Bigger SSD Without Getting Stuck

If your Nitro 5 shipped with a small SSD, moving Windows to a larger NVMe drive can cut load times and stop the constant “low disk space” warnings. The cleanest route is cloning your current drive to the new SSD while the laptop is still working, then swapping the SSD inside the laptop.

Cloning Checklist That Keeps Boot Simple

Update Windows And Restart — Install pending updates and reboot so the file system is settled.
Clean Up Free Space — Delete junk files so the clone runs faster and creates less clutter on the new SSD.
Connect The New SSD Over USB — Use a USB-to-NVMe enclosure or adapter that matches your SSD type.
Clone The Whole Disk — Copy all partitions, including EFI and recovery, not just the C: partition.
Shut Down After Cloning — Power off fully before you swap hardware so you don’t confuse boot entries.

Swap Drives And Pick The Right Boot Target

Install The New SSD Internally — Put the new SSD in the primary M.2 slot if your laptop has two.
Boot With One Windows Drive — Remove or disconnect the old Windows drive for the first boot to avoid mixed boot entries.
Confirm Windows Boot Manager — In BIOS, make sure the boot option points to the new SSD.

After Windows starts from the new SSD, you can reinstall the old drive as extra storage. Wait to wipe the old Windows partition until you’ve rebooted a couple of times and you’re sure the new SSD is stable.

Fixes When The New Drive Isn’t Showing Up

Most upgrade problems come down to seating, initialization, or boot selection. Start with the simplest checks and work upward.

Drive Missing In BIOS

Re-seat The M.2 SSD — Remove it, slide it back in firmly, then reattach the screw.
Re-seat The SATA Cable — Reseat both ends and confirm any latch is fully closed.
Test The Drive Externally — Use a USB enclosure to confirm the drive itself works.

Drive Shows In BIOS But Not In File Explorer

Check Disk Management — Look for unallocated space or a disk that needs initialization.
Create A Volume — Assign a drive letter and format the new volume.
Rescan Disks — In Disk Management, use Action > Rescan Disks.

Boot Problems After A Clone

Remove The Old Boot Drive — Boot with only the new SSD installed so Windows can’t pick the wrong EFI entry.
Verify UEFI Mode — Make sure BIOS is using UEFI boot, not legacy settings.
Run Startup Repair — Use a Windows installer USB if Windows Boot Manager needs repair.

If you cloned from a drive that was nearly full, some cloning tools struggle to resize partitions cleanly. In that case, re-run the clone after clearing more space, or do a fresh Windows install on the new SSD and restore files from backup.

Choose The Right Drive For How You Use Your Nitro 5

Picking the right storage is about what you do day to day. A fast NVMe SSD is ideal for Windows and games you launch often. A SATA SSD is a solid second drive for large libraries. A spinning HDD can still work for archives, yet it’s slower and more sensitive to bumps during travel.

Use NVMe For Speed — Put Windows, your browser, and your top games on NVMe if your model takes it.
Use SATA SSD For Capacity — Add a 2.5-inch SATA SSD for a big library with quiet operation.
Use HDD For Archives — Store recordings, photos, and older files where speed matters less.

Capacity Planning That Avoids A Packed C Drive

Try to keep healthy free space on the Windows drive. When C: gets crowded, updates can slow down, temp files pile up, and game patching becomes a hassle. A common approach is a 1TB NVMe SSD for Windows plus a second drive for everything else, though the “right” size depends on your game library and how many large files you keep locally.

Heat And Noise Notes After A Storage Upgrade

Adding a second drive can raise internal temps a bit, especially during long downloads or large file copies. If you notice higher idle temps after the upgrade, check that the bottom cover is seated flat and not pressing on anything. Also make sure vents are clear and the laptop isn’t sitting on soft bedding that blocks airflow.

Final Checks That Make The Upgrade Stick

Before you call the job done, run a quick set of checks. These are quick, and they catch the annoying issues while you still have tools out.

Confirm The Drive Appears Everywhere — Check BIOS, Disk Management, and File Explorer so you know detection is consistent.
Run A Large File Copy — Copy a multi-gigabyte folder to the new drive to confirm stable writes.
Test Sleep And Wake — Put the laptop to sleep, wake it, and open files from the new drive.
Set A Backup Habit — Pick a routine that matches your usage so the new capacity doesn’t turn into a single failure point.

Once these checks pass, your Acer Nitro 5 storage upgrade is complete. You’ll have more space, less install juggling, and a laptop that stays comfortable to use as your library grows.