Custom Scan takes up to 8 hours to complete - Windows 7

[Tex10]

Hi All; This month the Custom Scan (Full Scan) takes up to 8 hours or more to complete on many different computers. Previously these scans would only take up to 3 hours at the most. Has something changed? I don't understand why it takes so long this month? It seems to take the longest time while scanning the C:\windows\winsxs folder. Would it be recommended to NOT scan this folder or would that be too dangerous. Can infections get into this folder? Any suggestions would be greatly appreciated. Thanks in advance... See details:

Malwarebytes Anti-Malware
www.malwarebytes.org

Scan Date: 12/12/2016
Scan Time: 8:48 AM
Logfile:
Administrator: Yes

Version: 2.2.1.1043
Malware Database: v2016.12.12.10
Rootkit Database: v2016.11.20.01
License: Free
Malware Protection: Disabled
Malicious Website Protection: Disabled
Self-protection: Disabled

OS: Windows 7 Service Pack 1
CPU: x64
File System: NTFS
User: Tex Hemke

Scan Type: Custom Scan
Result: Completed
Objects Scanned: 511027
Time Elapsed: 7 hr, 25 min, 7 sec

Memory: Enabled
Startup: Enabled
Filesystem: Enabled
Archives: Enabled
Rootkits: Enabled
Heuristics: Enabled
PUP: Enabled
PUM: Enabled

Processes: 0
(No malicious items detected)

Modules: 0
(No malicious items detected)

Registry Keys: 0
(No malicious items detected)

Registry Values: 0
(No malicious items detected)

Registry Data: 0
(No malicious items detected)

Folders: 0
(No malicious items detected)

Files: 0
(No malicious items detected)

Physical Sectors: 0
(No malicious items detected)

(end)

[AdvancedSetup]

Hello @Tex10 and

Sorry for the delay. I've been out on vacation and looks like your topic was over looked.

Please read the following and post back the 3 requested logs as an attachment.
 
Diagnostic Logs
 
Thanks