Windows 10 - SpyBot Home (purchased March 2019)

Unlike the always-seamless immunization process used to always go, I now have the same 4 files ALWAYS reappear and "need to be immunized".

PE_C_Default.Migrated
PE_C_Default.installations
PE_C_Default.popups
PE_C_Default.images

I immunize them but they just reappear every time. I then APPLY IMMUNIZATION, get a "COMPLETE" message. But they will just show up again at next Immunization check.

I would apppreciate any info you can provide as to what this means, what causes it and any fixes available.

Thanks