Paul NZ :
It maybe malware. If ccleaner is installed go to tools/startup. If the entries for these are there delete them
Get adwcleaner run it then click on scan. Wait for it to finish then click on clean
Reboot then run it again then file / uninstall
https://toolslib.net/downloads/viewdownload/1-adwcleaner/
dont have ccleaner, but i dowloaded this adwcleaner. here is the log it generated:
# AdwCleaner v6.045 - Logfile created 17/04/2017 at 16:48:19
# Updated on 28/03/2017 by Malwarebytes
# Database : 2017-04-16.1 [Server]
# Operating System : Windows 7 Ultimate Service Pack 1 (X64)
# Username : Yair-PC - USER2017-PC
# Running from : C:\Users\user2017\Downloads\adwcleaner_6.045.exe
# Mode: Scan
# Support :
https://www.malwarebytes.com/support
***** [ Services ] *****
No malicious services found.
***** [ Folders ] *****
Folder Found: C:\ProgramData\TweakBit
Folder Found: C:\ProgramData\Application Data\TweakBit
Folder Found: C:\Windows\SysWOW64\config\systemprofile\AppData\Roaming\Solvusoft
***** [ Files ] *****
File Found: C:\Users\user2017\Downloads\WRCFree.exe
***** [ DLL ] *****
No malicious DLLs found.
***** [ WMI ] *****
No malicious keys found.
***** [ Shortcuts ] *****
No infected shortcut found.
***** [ Scheduled Tasks ] *****
No malicious task found.
***** [ Registry ] *****
Key Found: HKLM\SOFTWARE\TWEAKBIT
Key Found: HKLM\SOFTWARE\Auslogics
Key Found: HKLM\SOFTWARE\Microsoft\Windows\CurrentVersion\Uninstall\{80107F16-CB2E-42AB-AB9D-6C11540D5A8B}
Key Found: [x64] HKLM\SOFTWARE\Solvusoft
Value Found: [x64] HKLM\SOFTWARE\Microsoft\Windows\CurrentVersion\Run [CommonToolkitTray_Solvusoft]
Key Found: HKLM\SOFTWARE\Classes\Applications\Setup_WinThruster_2016.exe
Key Found: HKLM\SOFTWARE\Classes\Applications\WinThrusterSetup.exe
***** [ Web browsers ] *****
No malicious Firefox based browser items found.
No malicious Chromium based browser items found.
*************************
C:\AdwCleaner\AdwCleaner[S0].txt - [1620 Bytes] - [17/04/2017 16:48:19]
########## EOF - C:\AdwCleaner\AdwCleaner[S0].txt - [1693 Bytes] ##########
i used the "clean" buton but after rebooting my pc it still game me this dll pop up
EDIT: i opened the pc in safe mode and i didnt get the popup, if that helps somehow