**System Information**
Operating system: Windows-10-10.0.19041-SP0 64 Bits
Graphics card: GeForce GTX 1080 Ti/PCIe/SSE2 NVIDIA Corporation 4.5.0 NVIDIA 456.71
**Blender Version**
Broken: version: 2.90.1, branch: master, commit date: 2020-09-23 06:43, hash: `rB3e85bb34d0d7`
Worked:
**Short description of error**
If you create a sampling preset and you name it the same way as the built-in presets (Preview and Final), they can no longer be deleted and Blender recognizes them as defaults.
{F9193052}
{F9193058}
**Exact steps for others to reproduce the error**
Go to Render properties> in the Sampling tab, click on Sampling Presets> name the preset either as "Final" or "Preview" and add it> click on the minus icon to remove the preset.
{F9193102}