The virus vault/quarantine section is for storing files identified as malware that you may wish to restore later should their detection have been a mistake. If you are sure you don't need or want thefiles, you can safely delete them. Otherwise, there's no harm leaving them were they are, though one security scanner may still detect the malware in the other program's quarantine.
As to the rundll issues, please include the exact error message and your OS details.
John
I have updated the MalwareBytes Anti Malware free and Tech TRacker as well to keep me updated. My computer has been running slower and slower and sometimes freezing. Im just now running a scan through MalwareBytes Anti Malware and i noticed that under my quarantine section there are like 5 threats that were found. 3 were Trojans and 2 was i regroup threats or something like that. Should i leave the Quarantine section alone or delete the viruses in them. Im also having an annoying problem with a Rundll error. I no longer have the start up discs for my computer cuz its an oldie, like 6 yrs old and i was wondering if there is anyway to fix the rundll error? For virus protection i have the free download of AVG which has been doing me a great job by finding recently another Trojan virus. Im thinking AVG put it in a virus vault. Should i do anything with the virus vault? Im sorry if i do sound stupid but i just dont know much about computers to be messing with stuff i dont know about. Ty for your help.

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