I just installed and ran Malwarebytes. It completed successfully with 0 threats.

Malwarebytes Anti-Malware
www.malwarebytes.org

Scan Date: 8/21/2015
Scan Time: 6:05 AM
Logfile: MBAM_scan-log.txt
Administrator: Yes

Version: 2.1.8.1057
Malware Database: v2015.08.21.03
Rootkit Database: v2015.08.16.01
License: Trial
Malware Protection: Enabled
Malicious Website Protection: Enabled
Self-protection: Disabled

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

Scan Type: Threat Scan
Result: Completed
Objects Scanned: 383643
Time Elapsed: 20 min, 49 sec

Memory: Enabled
Startup: Enabled
Filesystem: Enabled
Archives: Enabled
Rootkits: Disabled
Heuristics: Enabled
PUP: Warn
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)

OK…

So now let me ask, why am I using MBAM all over again? And why did Avast Crash and reboot my machine?

Is Avast not up to the task of protecting my computer?