I recommend you UnHackMe - Ultimate Malware Killer for fast malware removal:
Free Download Fully Functional 30-day Trial. No credit card is required.
Reviews. EULA. Privacy Policy. Uninstall.
We check some samples of adobe91.exe and detected the file adobe91.exe as threat.
You need remove the adobe91.exe from your computer right now.
Removal tool: http://www.unhackme.com