A legal copy ist already 1200 Baht.
Sounds like the shop did a full reinstall instead of just cloning your old drive, and they may not have set up the SSD properly.
A few things to check:
Check boot order in BIOS/UEFI:
Maybe it’s trying to boot from the wrong device first. Enter BIOS (usually by pressing Del, F2, or Esc during startup) and make sure the SSD is the first boot device.
Fast Startup / Hibernate issues:
Windows Fast Startup can cause boot problems on fresh installs. Try disabling it:
Control Panel > Power Options > Choose what the power buttons do > Change settings that are currently unavailable > Uncheck “Turn on fast startup”
Drivers or firmware
If the SSD firmware or chipset drivers are missing or outdated, the system might hang. Go to the SSD manufacturer's site and get the latest firmware/drivers.
Windows installation mode (AHCI vs RAID):
If the SSD was installed with incorrect BIOS settings (like using RAID mode instead of AHCI), it can cause weird startup behavior. Changing this after installation requires care though, or Windows might fail to boot.
As a temporary workaround:
If you always have to hard-restart to make it boot, try doing a full shutdown (Shift + Shutdown) and see if that helps. Also test whether it behaves the same after sleep or hibernate.