I couldn't decipher this situation confidently, but it seems SA OS Recovery function does not support the replacement of the original HDD to the 3rd party SSD. At first, SA OS Recovery notified it had created snap shots, but now, the BIOS setting is forcefully reset as disabled. When starting SA OS Recovery, it says the function is not available. I tried to use http method to restore the OEM partition of Dell, but couldn't.
When starting SA OS Recovery (not SA), there always appears a black window saying "Paused capturing snapshots due to insufficient disc space.  We will automatically resume capturing snapshots once you free up enough disk space." (disc and disk are sic ) What should I do? In the Windows Notification sidebar, SA constantly notifies that it created a Fast Backup. The PC has enough disk space and I assume there is no problem. Inspiron 3250, Intel 6th generation Skylake Windows 10 Home, 2004, 19041.575 DellSupportAssistControlPanel.exe, ver. 5.2.1.12926 (by the way, SupportAssist is 3.7.6.0)
SA OS Recovery, insufficcient space, Inspiron 3250