Re: More false positives

Try using the beta, see if that elevate the false positives. However, if your software is obtained in illegitimate ways (I know music software can get quite expensive), it might have some form of virus or malware attached to it. You can never discount the possibility.

Re: Start\Windows icon

Have you noticed anything else weird/out of the ordinary on your PC? Can you try booting into Windows "Safe mode with networking" and see if you can do any of the actions through that. Otherwise, I would recommend doing a thorough malware check just in case.

Full and thorough malware check:

1. Restart your PC in “Safe mode with networking.” 2. Install and run RKill to kill malicious processes...

Re: False positives?

I detected this in all my Pcs

# AdwCleaner 7.0.1.0 - Logfile created on Wed Aug 16 22:52:27 2017 # Updated on 2017/05/08 by Malwarebytes  # Database: 08-16-2017.2 # Running on Windows 7 Professional (X64) # Mode: scan # Support: https://www.malwarebytes.com/support

***** [ Services ] *****

No malicious services found.

***** [ Folders ] *****

No malicious folders found.

***** [ Files ] ***...

Re: False positives?

Since PUP is a potentially unwanted software, it might not be an infection, just some rogue application running or installed on your PC. Do a thorough scan with Malwarebytes and see if it helps to deal with the issue. Also, you can try searching for the folder manually, as the path is listed and remove it that way. If you have issues, kill the process with the task manager and then remove it. 

Re: Version 7.0.2.0 beta stops when scanning

Did you remove previous versions of the software from your PC and are you sure you are using the latest version? Make sure you are running only one instance of anti-malware software.

Re: False positives?

Here's the log... I still get that one PUP.Optional.Legacy result, dammit.

So it's really an infection after all?

# AdwCleaner 7.0.2.0 - Logfile created on Sun Aug 13 19:14:04 2017 # Updated on 2017/29/08 by Malwarebytes # Database: 08-11-2017.1 # Running on Windows 7 Home Premium (X86) # Mode: scan # Support: https://www.malwarebytes.com/support

***** [ Services ] *****

No malicious servic...

FPs ?

Are these reg keys FPs ?

***** [ Registry ] *****

PUP.Optional.Legacy, [Key] - HKLM\SOFTWARE\Microsoft\Internet Explorer\ActiveX Compatibility\{B9507101-E464-4B3B-A4CB-291AAEDD94F2} PUP.Optional.Legacy, [Key] - HKLM\SOFTWARE\Microsoft\Internet Explorer\ActiveX Compatibility\{2316C625-B487-4410-A1A5-FF040B65245F} PUP.Optional.Legacy, [Key] - HKLM\SOFTWARE\Microsoft\Internet Explorer\ActiveX Co...

Re: False positives?

New version rolled in, and I rebooted as it was suggested to me... I still get these results.

# AdwCleaner 7.0.1.0 - Logfile created on Wed Aug 09 11:59:08 2017 # Updated on 2017/05/08 by Malwarebytes # Database: 08-09-2017.1 # Running on Windows 7 Home Premium (X86) # Mode: scan # Support: https://www.malwarebytes.com/support

***** [ Services ] *****

No malicious services found.

***** [ Fo...

Re: More false positives

False positives can happen from time to time, nothing new there. If the application is interacting at a system level and is not known, it will flag that it as a potential issue. AdwCleaner getting bought by Malwarebytes did nothing but good, so I am not sure. You can report the file or software that is causing the pop-up.

Re: Version 7.0.2.0 beta stops when scanning

After the logs, do you have any other anti-virus or active anti-malware software that could be interfering?Have you tried restarting PC, running RKill to kill potentially malicious software and scan with AdwCleaner? What about Windows safe mode? does that work?