Windows 10: Why are these autoruns missing but their keys exist?

I just installed win 10 and downloaded Autoruns from sysinternals to note default auto run programs.




:)

 

autoruns reports missing files

I have another thread open for another missing file reported by autruns, but it also lists these 4 files as missing:

Autorun entry: VIDC.l420 Image Path: File not found: emYUV.dll
Autorun entry: VIDC.YUY2 Image Path: File not found: emYUV.dll
Autorun entry: VIDC.VP80 Image Path: File not found: vp8vfw.dll
Autorun entry: vidc.XVID Image Path: File not found: xvidvfw.dll

I'm guessing these are all codec files? Autoruns don't list a file location for these but selecting "jump to entry" opens the listing in the registry. I don't know If I should just delete these missing entries in autoruns or leave it alone or should I worry? I've been setting up my new 64-bit PC and I've been installing and uninstalling various software getting everything set up. I'm guessing these files got installed and removed along the way, but I'm wondering if these missing files will cause me any issues?

 

autoruns reports missing files

I fear this thread has gotten clogged up and now nobody is helping. Bottom line:

Autoruns lists these 4 missing codec files:

Autorun entry: VIDC.l420 Image Path: File not found: emYUV.dll
Autorun entry: VIDC.YUY2 Image Path: File not found: emYUV.dll
Autorun entry: VIDC.VP80 Image Path: File not found: vp8vfw.dll
Autorun entry: vidc.XVID Image Path: File not found: xvidvfw.dll

HIjackthis lists these missing files (Checked and indeed missing):

C:\Windows\Program Files (x86)\Windows Defender\NisSrv.exe
C:\Windows\Program Files (x86)\Windows Defender\MsMpEng.exe
C:\Windows\Program Files (x86)\Windows Media Player\wmpnetwk.exe
SDWinLogon.dll missing from Spybot Program Files directory

I just want to know if these missing files can be easily replaced, or what software would replace them, or if these files are even needed.

 

autoruns reports missing files

I ran Hijackthis. There's a whole bunch of things listed, including a whole bunch of "missing files" that aren't missing. But none of those files are the 4 files I listed in this thread.

Which leads me back to : What do I do about these 4 missing files? Are they needed? Do they come with Windows? I don't want to do a repair installation for no reason if it isn't even going to install these files because they came as part of a program I have already uninstalled. I don't know if I should uncheck these entries in autoruns, delete them, or what? If they are important and needed I'd like to know what to do about it. My guess is the entries are left behind from a piece of software that came with it's own .dll codecs and uninstalling it left the entries behind. Autoruns does not list the location of these 4 missing files. They aren't specifically listed as belonging in my system32/sysWOW64 folder, so they could just as easily have been in my program files folder for the software that installed them originally. I noticed a couple media converter/player programs I tried out installed their own batch of codecs to their program folders, so that may have happened here - they got uninstalled from the program folders and left the entries behind for autoruns to see. I'm just guessing here - that's why I"m asking for guidance.