@bob3160 : thanks, I have downloaded & installed Should I Remove It. Seems that everything is okay.
CCleaner>Tools>Startup>Save to text file (programs set to run when computer or browser starts) See attachment.
Avast Free Antivirus?Scan>GrimeFighter>21 problems (9 apps plus 12 system settings)
Can I have GrimeFighter solve these problems?
Scancircle.com>direct scan>system 10, security 10, hardware 9.3, software 8.8, processes 5.8 (to be checked)
Unusual folder startup process (dropbox update)
Looking forward to help/advice, thanks in advance.
Kind regards, Herman (The Netherlands)