I have never seen that happen as I, like you, have my files and folders unhidden and it's never happened here.
I'm not so sure that McAfee would do that so probably best you contact Technical Support regarding this. It's free by phone or online chat and linked under Useful Links at the top of this page.
Edit: The only possibility is the Vulnerability Scanner in PC and Home Network Tools - I wonder if that has the capability of doing that but I really don't know. Support would know.
If that is true then I feel it shouldn't be doing that and I agree with you.
I've been actively using McAfee Virus Scan Enterprise for over 3 years and experienced exactly the same behavior as @delclemons. Regardless of Windows version (moved from XP to 7 both x86 & x64) and/or product version, after scanning or upgrading signatures the following folder options always get altered in the View tab:
-- Hidden files and folders radio selection goes to "Don't show hidden, files, folders, or drives
-- Hide extensions for know file types gets checked
-- Hide protected operating system files also gets a check-mark in it.
Every time I see my desktop.ini icons vanish from my desktop, I have to get into Folder Options from within Windows Explorer and un-check these.
Never had a 'hit' when googling this issue until now.
VSE operates differently form VS Home and has many more controls.
Unfortunately we never heard back, since January, from these users as to whether or not they contacted Tech Support and whether or not my guess that it could have been Vulnerability Scanner, a totally different scanner, that was to blame.
In either case there have been upgrades and major updates to the software since then, except perhaps for those using McAfee supplied by 3rd parties such as Dell, their ISP etc., etc. as often those are updated/upgraded last of all due the that 3rd party delaying same.
Sorry for the off-topic here, I'll take my issue to VSE forums, as I've seen another user experiencing this and also posted, one day after your reply here, that his user view customizations were wiped by VSE. The link to that thread (still unanswered) is here, for what it's worth: https://community.mcafee.com/message/269946
That's OK and I must say it's very interesting but wish I knew more about what exactly is going on here. Now if similar things are happening in consumer and business products then the engine perhaps is to blame, but that's just speculation.
Good luck ;-)
The same exact thing is happening on my Win7 laptop. I cannot believe that they are that lame. Since Win95 McAfee has always managed to be a huge pain in th a**. I have purposly not used Mcafee until it was provided by my ISP.
So, is there a solution????
It's happening on my PC too. Totally sucks. Will look for different AV software unless there's a solution to this idiotic feature.
On re-reading that first post from last year it strikes me that the OP was perhaps trying to delete quarantined files in the wrong manner. You delete those from within the SecurityCenter > Navigation > Quarantined and Trusted Items. The actual items and the folder they are in will be encrypted by the software to protect the system, therefore hidden.
I think your are best advised asking Technical Support ot explain the workings of the software, They can do it far better than I can and it's free by phone or online chat and linked under Useful Links at the top of this page.
I have not been able to fnd a support phone #. Do you have it, please?