There really is insufficient information to give detailed advice.
Why could avast not move those files to the chest, what errors/message was given ?
Deletion isn't really a good first option (you have none left), 'first do no harm' don't delete, send virus to the chest and investigate.
What is the infected file name, where was it found e.g. (C:\windows\system32\infected-file-name.xxx) ?
Check the avast! C:\Program Files\Alwil Software\Avast4\DATA\report\aswBoot.txt file using notepad, this contains information on all avast detections during a boot-time scan. This file would be overwritten on the next boot-time scan so if you have done another the other data would be gone.
Again why wont it let you send files in the temp folders to the chest.
It could be an infection present on your system which is undetected or hidden by rootkit.
Also see, anti-rootkit, detection, removal & protection
http://www.antirootkit.com/software/index.htm. Try these as they are some of the more efficient and user friendly anti-rootkit tools.
- Panda Rootkit Cleaner -
http://research.pandasoftware.com/blogs/images/AntiRootkit.zip.
- Trend Micro RootkitBuster -
http://www.trendmicro.com/download/rbuster.asp- F-Secure Blacklight may not always be available,
http://www.f-secure.com/blacklightpreferably in safe mode[/i] and report the findings (it should product a log file).
1. [url=http://www.superantispyware.com]SUPERantispyware]If you haven't already got this software (freeware), download, install, update and run it (after the above), preferably in safe mode and report the findings (it should product a log file).
1. [url=http://www.superantispyware.com]SUPERantispyware On-Demand only in free version.
2. MalwareBytes Anti-Malware, On-Demand only in free version
http://download.bleepingcomputer.com/malwarebytes/mbam-setup.exe, right click on the link and select Save As or Save File (As depending on your browser), save it to a location where you can find it easily later.
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