Upgrading the SSD in your ASUS VivoBook 15 Intel Core i3 1215U improves Windows boot time, application launch speed, and overall system responsiveness. The VivoBook 15 M.2 slot supports both NVMe and SATA M.2 SSDs, with NVMe providing the best performance improvement over the original drive.
This guide covers SSD compatibility, data cloning, upgrade procedure, and Windows configuration for the ASUS VivoBook 15 Intel Core i3 1215U in Windows 11.
“VivoBook 15 Core i3 1215U had 256GB HDD (some configurations ship with HDD). Upgraded to 512GB WD Blue SN570 NVMe. Cloned with Macrium Reflect Free. Boot time dropped from 45 seconds to 12 seconds. Should have done this from day one.” – Zulaikha, diploma student from Seremban

SSD Compatibility for ASUS VivoBook 15 Core i3 1215U
The ASUS VivoBook 15 Intel Core i3 1215U uses an M.2 2280 slot (22mm wide, 80mm long) that accepts both NVMe PCIe 3.0 and SATA M.2 SSDs. The Intel Core i3 1215U supports PCIe 3.0 for M.2 storage (not PCIe 4.0 – use of PCIe 4.0 SSDs in this slot operates at PCIe 3.0 speeds). NVMe PCIe 3.0 SSDs (Samsung 970 Evo Plus, WD Blue SN570, Kingston NV2) provide sequential read speeds of 3000-3500MB/s compared to 500-550MB/s for SATA M.2 SSD and 100-120MB/s for HDD. For the Core i3 1215U platform, the NVMe upgrade provides the most significant performance improvement for Windows 11 boot time and application loading.
- M.2 2280 form factor – 22mm wide, 80mm long (most common M.2 size)
- NVMe PCIe 3.0 preferred for 3000-3500MB/s sequential read speed
- SATA M.2 also compatible if NVMe is unavailable or budget-limited
- PCIe 4.0 SSDs work in PCIe 3.0 mode – slightly lower performance than PCIe 3.0 rated max

Step 1 – Clone Original Drive (Optional but Recommended)
Download Macrium Reflect Free from macrium.com. Install the new NVMe SSD in a USB-to-M.2 enclosure. Open Macrium Reflect – Clone this disk. Select the original drive as source and the new SSD as destination. Click Clone Now and wait for clone to complete (30-90 minutes depending on data amount). Cloning copies the Windows installation, all applications, settings, and personal data to the new SSD – after clone and physical swap, the system boots from the new SSD exactly as before without Windows reinstallation. Alternatively, perform a clean Windows 11 installation if wanting a fresh start, using a Windows 11 USB installation drive from Microsoft media creation tool.
Step 2 – Remove Bottom Panel and Replace SSD
Power off the VivoBook 15 completely and disconnect the charger. Place the laptop upside down on a soft cloth. Remove all bottom panel Phillips #0 screws (typically 8-10 screws, some may be hidden under rubber feet). Gently pry the bottom panel using a plastic pry tool starting from a corner. After the panel is removed, locate the M.2 2280 slot – the SSD is held by a single screw at the far end. Remove the screw, pull the SSD straight out at a slight angle. Insert the new NVMe SSD at the same 30-degree angle, push down flat, and reinstall the retention screw. Reinstall the bottom panel by pressing firmly around the perimeter until all clips snap, then reinstall all screws including any under rubber feet.
Boot and Verify New SSD
Reconnect charger and power on the VivoBook 15. If cloned, Windows boots automatically from the new SSD to the familiar desktop. Open File Explorer – This PC to verify the new SSD capacity is shown. Open Task Manager – Performance – Disk to confirm the SSD is the active Windows drive with NVMe listed as the disk type. Run CrystalDiskMark to benchmark the new SSD – sequential read should show 3000-3500MB/s for NVMe PCIe 3.0 drives. If doing clean install, boot from Windows 11 USB installation media (press F2 at boot for BIOS boot order or Esc for boot menu) and install Windows on the new SSD.

Step 3 – Configure Windows for SSD Performance
After SSD upgrade, verify Windows is configured for optimal SSD performance. Open Settings – System – Storage and confirm Storage Sense is enabled for automatic temp file cleanup. In Disk Management (right-click Start), ensure the new SSD partition is aligned (modern Windows installers and clone software handle alignment automatically). Disable disk defragmentation for SSDs: open Defragment and Optimize Drives (search in Start) – ensure the NVMe SSD schedule is set to Off (SSDs do not benefit from defragmentation and excessive TRIM cycles from scheduled defrag reduce SSD lifespan). TRIM is enabled by default in Windows 11 for NVMe SSDs and runs automatically during system idle.
Step 4 – Extend Partition to Use Full New SSD
If the cloned partition shows the original drive size rather than the new larger SSD capacity, extend it in Disk Management. Right-click on the Windows partition (C:) – Extend Volume – accept defaults to extend using all available unallocated space. The partition extension takes 30-60 seconds and makes the full new SSD capacity available to Windows without data loss. After extension, C: drive shows the new full SSD capacity in File Explorer. This partition extension step is required when cloning from a smaller original SSD to a larger replacement SSD on the ASUS VivoBook 15 Intel Core i3 1215U upgrade.
Frequently Asked Questions
How do I upgrade SSD on ASUS VivoBook 15 Intel Core i3 1215U?
Remove bottom panel (Phillips #0 screws + plastic pry tool). Remove M.2 SSD retention screw. Swap SSD. Reinstall panel. Boot from cloned drive or fresh Windows 11 install. Extend partition in Disk Management for full capacity.
What SSD is compatible with ASUS VivoBook 15 Intel Core i3 1215U?
M.2 2280 NVMe PCIe 3.0 (recommended: WD Blue SN570, Kingston NV2) or SATA M.2. NVMe provides 3000-3500MB/s vs 550MB/s SATA for significant boot and application speed improvement.
Does ASUS VivoBook 15 Intel Core i3 1215U have two M.2 slots?
Typically one M.2 2280 slot. Check specific model service manual (F1504, X1504, etc.) to confirm if second slot present before purchasing second SSD.
How much SSD storage do I need for ASUS VivoBook 15 Intel Core i3 1215U?
512GB for student and office use. 1TB for creative work and large media libraries. NVMe PCIe 3.0 512GB provides best price-to-performance for VivoBook 15 Core i3 1215U upgrade.
Conclusion
ASUS VivoBook 15 Intel Core i3 1215U SSD upgrade in Windows 11 provides the most significant performance improvement available for the platform, reducing Windows boot time from 30-45 seconds (SATA or HDD) to 8-12 seconds (NVMe). M.2 2280 NVMe PCIe 3.0 SSDs including WD Blue SN570 and Kingston NV2 are compatible and provide 3000-3500MB/s sequential read for fast application loading. Macrium Reflect Free cloning preserves Windows installation and data during the drive swap. Partition extension in Disk Management after cloning makes the full new SSD capacity available as usable C: drive space on the VivoBook 15 after upgrade.
Ryan holds a Computer Science degree and has spent over 15 years troubleshooting Windows hardware and driver issues across major laptop brands. He writes practical, step-by-step guides for everyday users at softwaredriverdownload.com.
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