One week ago, pop-ups suddenly began to appear regularly in Internet Explorer even when I wasn't using it. I figured out by doing some scans that it was some adware called "adserver" and I thought I had removed it when other windows began to appear, mainly ads for fake antiviruses.
And today one novelty : this TROJ_DELF.AHB detected by TrendMicro Office Scan in a file named adpti.dll . I tried to delete it but this acces is denied (I am on an administrator account). TrendMicro seems to have the same problem as it can't put it into quarantine and it reminds me of it every hour.
Before having it, I did some scans with spybot, AVG antispyware and kaspersky online, but I still have popups (less than before) and this Trojan newcomer.
So I'm asking for your help to tell me how to clean my computer properly.
Here is a screenshot of the alert (It's written Virus succesfully detected).
Thank you in advance for you help