On 2019/03/01, I came back to my desktop after a week away (W10 Pro x64 v1809). After logging in, I was greeted with an always-on-top ad for Logitech Capture https://puu.sh/CrlyK/cd7bc406a9.png . This ad appears to be spawned by Logitech Download Assistant, c:\windows\system32\logilda.dll, via a registry entry under Computer\HKEY_LOCAL_MACHINE\SOFTWARE\Microsoft\Windows\CurrentVersion\Run, with the name of "Logitech Download Assistant", type REG_SZ, and Data C:\Windows\system32\rundll32.exe C:\Windows\System32\LogiLDA.dll,LogiFetch. A quick search indicates that "Logitech Capture" is an OBS competitor recently launched by Logitech, and that Logitech Download Assistant is a part of the Logitech drivers for their input devices (as opposed to the generic MS ones). Before I left, I had just added a Logitech C920 webcam,(preexisting Logitech devices: a G510 keyboard and a G502 mouse) and when I came back, I had a pending W10 Update labeled only as "Logitech Image". Rebooting my computer to finish the update resulted in the ad reappearing on my desktop. Disabling the Registry entry via Autoruns and rebooting resulted in the advertisement not appearing on my desktop.