The first, even if it isn't a virus it shows you have remnants of symantec on your system as the symantec shared folder hasn't been removed.
The second is that in your HP recovery partition ?
I suspect so and I guess symantec was pre-installed. If so I doubt there is much you can do about that one I would have though it is a protected partition (the probable cause of the error). Other than excluding this file from scanning (see false positive link below) D:\hp\apps\APP04471\src\Setup\Setup.msi until it is resolved, I suspect it is more likely to be a false detection.
I don't believe the detections are indicating a cast iron trojan hence the [Embedded#Dodgy] suffix, it may just be the way the installation is packed.
Do you have any Symantec applications installed now ?
You could also check the offending/suspect file (to confirm or deny the detection) at:
VirusTotal - Multi engine on-line virus scanner and
report the findings here. You can't do this with the file securely in the chest, you need to extract it to a temporary (not original) location first, see below.
Create a folder called Suspect in the C:\ drive, e.g. C:\Suspect. Now exclude that folder in the
Standard Shield, Customize, Advanced, Add, type (or copy and paste) C:\Suspect\* That will stop the standard shield scanning any file you put in that folder. You should now be able to export any file in the chest to this folder and upload it to VirusTotal without avast alerting.
If it is indeed a false positive, see
http://forum.avast.com/index.php?topic=34950.msg293451#msg293451, how to report it to avast! and what to do to exclude them until the problem is corrected.