PUP.Optional.ExpressFiles.A Virus Removal

Get PUP.Optional.ExpressFiles.A virus infection on your computer? How can this PUP invade your PC since you have installed anti-virus program? Why can’t security tool remove the PUP virus completely? What is the best way to get rid of this threat? Learn more from this post.

Description of PUP.Optional.ExpressFiles.A Virus:

PUP.Optional.ExpressFiles.A, as a latest PUP virus, it is a dangerous virus process which is able to cause chaos and problem on the infected computer. All the Windows OS like XP, Vista, 7 and 8 will be the target of this nasty virus process. Usually PC users get the virus infection while surfing on the Internet, especially on some unsafe webpages like porn. Most of the anti-virus programs can detect the virus infection but don’t have enough power to remove it, the PUP virus keeps coming back after restarting the infected PC. This PUP is very nasty because once it starts its working, the infected PC will be in a high-risk of being attacked by the cyber criminals, it is a extremely dangerous virus that PC users need to be careful while dealing with it.

In general, PUP.Optional.ExpressFiles.A virus will cause terrible virus infection on the infected computer, not only can it modify system settings but also make damage on the security programs, and that is why some anti-virus programs on the infected machines will be totally corrupted. Desktop image, homepage and other items on the infected computer can be totally different, cyber criminals may use this PUP virus to collect information from the naive PC users, all the details or other data on the problematic machine will be easily stolen. It can make the infected PC stay in an unsafe situation which needs to be removed to avoid further damage.

The following instructions require certain levels of computer skills. If you’re not sure and are afraid to make any critical mistakes during the process, please live chat with YooCare Expert now.

How Can This Virus Attack the Computer?

How did you get PUP.Optional.ExpressFiles.A virus on your computer? Usually these kinds of the viruses will be planted to some programs especially free programs, .exe, .bat or other executable processes and unsafe links. The computer will get the virus infection when the PC users install, open or click on these infected files. Sometimes the virus can even attack the computer by the files on the USB stick as well. Most of the unsafe website and forum will contain the virus infection, the computer can be infected while visiting these webpages.

What Damage Will be Caused by the Virus:

Generally speaking, this virus can cause terrible virus infection on the infected computer like running slowly and even computer crashing. Once this virus has been installed to the computer, PC users will have to spend a long time opening programs or turning on the infected machine. It keeps taking over the high resource of the CPU and attacking the anti-virus program, other threats can be downloaded automatically from the unsafe website as well. What is worst, the cyber criminals have ability to remote control the infected PC due to this dangerous virus, all the information is in a high-risk of being stolen, the whole computer won’t be safe anymore.

Best Way to Handle With the Trojan Virus Completely?

The Trojan horse virus is an extremely dangerous threat on the infected computer. Registry and other system settings can be modified by it completely, that is the reason the nasty redirect virus can escape the tracking of the security tools like anti-virus program or firewall. It is strongly suggested that PC user should get rid of this Trojan horse virus in a manual way to remove it. Learn more from the manual removal guide below.

Step-by-Step Manual Removal Guide:

1. Press Ctrl+Shift+ESC keys together and stop virus process in the Windows Task Manager.

(The name of the virus process can be random)


2. Show hidden files and folders.
a. For XP: Press Win+E together, click on Tools, then choose Folder Options

For Vista, 7 and 8: Press Win+E together, click on Organize, then choose Folder and search options.
b. Click the View tab.
Under Advanced settings, click Show hidden files and folders, uncheck Hide protected operating system files (Recommended) and then click OK.

3. Open Registry entries. Find out the malicious files and entries of the virus and then delete all.

Attention: Always be sure to back up your PC before making any changes.

a. Press Win+R to get the Run window. In the “Open” field, type “regedit” and click the “OK” button.


regitry editor

b. All malicious files and registry entries that should be deleted:




HKEY_CURRENT_USER\Software\Microsoft\Windows\CurrentVersion\Run\[RANDOM CHARACTERS].exe

HKEY_LOCAL_MACHINE\Software\Microsoft\Windows NT\CurrentVersion

4. Reboot the computer normally to take effective, when the above steps are done.

This Video Shows You How to Safely Modify Windows Registry Editor:

As the above mentioned, PUP.Optional.ExpressFiles.A is a dangerous virus process which can infect the computer by passing through the security programs. PC users had to spend a long time turning on the infected PC or running process, they may even get blue death screen frequently while using the infected PC. This PUP virus has been on of the most nasty virus processes on the Internet, stop being naive, it will not go until you start to take actions to remove it, since the anti-virus program is not a perfect way to get rid of this virus process, it is suggested that PC users should remove it manually.

If you have no idea how to do with that, please to contact experts from Yoocare Online Tech Support for further help.

Published by on January 8, 2014 11:19 am, last updated on January 8, 2014 1:20 pm

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