Ignore Registry keys

[PhilG57]

There is almost certainly an obvious answer but as a search in both the on-line help and the forum throws up nothing for "Registry Key" I am asking here.  So how do I add a registry key to my list of malware exclusions?

FWIW here are the results of my last scan:

Malwarebytes
www.malwarebytes.com

-Log Details-
Scan Date: 1/27/17
Scan Time: 9:04 AM
Logfile: malwarebytes27Jan2017.txt
Administrator: Yes

-Software Information-
Version: 3.0.5.1299
Components Version: 1.0.43
Update Package Version: 1.0.1109
License: Premium

-System Information-
OS: Windows 10
CPU: x64
File System: NTFS
User: System

-Scan Summary-
Scan Type: Threat Scan
Result: Completed
Objects Scanned: 495876
Time Elapsed: 41 min, 19 sec

-Scan Options-
Memory: Enabled
Startup: Enabled
Filesystem: Enabled
Archives: Enabled
Rootkits: Disabled
Heuristics: Enabled
PUP: Enabled
PUM: Enabled

-Scan Details-
Process: 0
(No malicious items detected)

Module: 0
(No malicious items detected)

Registry Key: 2
PUP.Optional.SoftMedia, HKU\S-1-5-21-1945349885-2404292949-1010972681-1000\SOFTWARE\POWERPACK, No Action By User, [2303], [343995],1.0.1109
PUP.Optional.Uniblue, HKLM\SOFTWARE\WOW6432NODE\UNIBLUE\SpeedUpMyPC, No Action By User, [1476], [339370],1.0.1109

Registry Value: 1
PUP.Optional.SoftMedia, HKU\S-1-5-21-1945349885-2404292949-1010972681-1000\SOFTWARE\POWERPACK|GUID, No Action By User, [2303], [343995],1.0.1109

Data Stream: 0
(No malicious items detected)

Folder: 0
(No malicious items detected)

File: 0
(No malicious items detected)

Physical Sector: 0
(No malicious items detected)

(end)