An ASUS laptop with a hard drive is limited by the platter, not the processor. Moving Windows to an SSD keeps MyASUS, Armoury Crate, and every licence intact.
This guide covers the slot differences between Vivobook, ZenBook, and ROG models, the BIOS settings that matter, and the clone itself.
Cloning suits a healthy Windows install. If the old drive already shows SMART warnings, image it first and replace the hardware rather than repairing it.

Buy for the slot you have, not the fastest drive on the shelf. A SATA M.2 module in an NVMe-only slot simply will not appear in the BIOS.

If the firmware uses Intel RST RAID mode, note it before the clone. Switching to AHCI afterwards needs the safe-mode preparation described on the ASUS support pages.
Qiling Disk Master copies the ASUS disk with its EFI and recovery partitions, so the new SSD boots without rebuilding the boot store.
Step 1. Open Qiling Disk Master, choose Clone, and then select Disk Clone.

Step 2. Select the ASUS HDD as the source and click Next.

Step 3. Select the SSD in the enclosure as the destination and confirm that its data will be replaced.

Step 4. Review the layout, keep the EFI and recovery partitions, and tick Optimize for SSD.

Step 5. Click Proceed, wait for the copy to finish, then shut down and install the SSD in the M.2 slot.

If the laptop reports no bootable device, the SSD entry is missing or the boot store points at the old disk. Cloned Drive Wont Boot Fix covers the repair steps.
No. A full disk clone keeps Windows, activation, MyASUS, and the recovery partition.
Only if the model has a free M.2 or 2.5-inch bay. Check the service manual before buying.
Only in a B+M keyed slot. An NVMe-only slot requires a PCIe drive.
Only when the laptop has two slots. With one slot, connect the new drive through USB first.
Yes. Applications and their settings live on Windows, so they move with the clone.
Before changing drives or partitions, create a full system backup. Qiling Disk Master creates an image you can restore from.
Step 1. Open Qiling Disk Master and select System Backup to include Windows and the boot partitions.

Step 2. Save the image to a drive other than the target disk and start the backup.

Step 3. Click Proceed to start the system backup and wait patiently until it finishes. You can also tick Shut down the computer when the operation is completed to power off automatically.

Step 4. If the copy will not start, restore the image to a spare drive and boot from it.

An ASUS upgrade depends on one question: M.2 or 2.5-inch. Confirm the key type and length, update the BIOS, and note whether the firmware runs AHCI or RAID before you copy. Clone the whole disk so the EFI and recovery partitions stay in place, then set Windows Boot Manager on the SSD first and keep Secure Boot unchanged. Install the ASUS drivers and confirm TRIM before you retire the HDD.
For more laptop upgrades, see How to Clone an MSI Laptop HDD to SSD, How to Clone an NVMe SSD to a Larger NVMe, Cloned Drive Wont Boot Fix, and How Long Does a Disk Clone Take.