As has been said on many instances before, stop scanning memory in your custom scan.
Detections in Memory -
My guess is that you are doing a Custom scan in which you have elected to scan Memory and that all these detections are in memory. Since they aren't physical files they can't be moved to the chest, deleted, etc. so there is no action that can be taken, hence the Apply button being greyed out.
The detections in memory are frequently other security applications loading unencrypted virus signatures into memory. Having set off a scan of memory by an antivirus application looking for virus signatures, don't be too surprised if it finds some in memory.
Whilst it is possible to set Memory Scan exclusions, I see little point in scanning memory (as it is a bit late if it were malware loaded in memory) - You can set the exclusion (e.g. for the particular scan you created) as follows (example for mbam):
*PROCESS\*\mbamservice.exe
- then the mbamservice process won't be scanned at all.
