I have been told that my computer is infected by this PUP.Optional.BrowsersApp.A. It is beyond my ability to solve this problem on my own as I only gain little computer knowledge. The warning comes from my anti-virus program which was installed by a tech guy. He told me this tool can remove virus and other computer threats, but it seems that it doesn’t work this time. How can I get rid of this stuff? Please help.

Brief Introduction to This PUP

PUP.Optional.BrowsersApp.A, known as potentially unwanted program, it has been clarified by McAfee, a famous Internet security company. The description of it can be an application that can generate many problems on the computers. Usually, this kind of program can be downloaded in conjunction with other free programs. Cyber hackers can bundle this PUP to those programs that are commonly used by computer users and upload those corrupted programs to some unreliable resources for users to download. Also, just like Trojan, this PUP can come to target computers when people come to some unsafe websites, like porn web pages, some untrustworthy pop-ups and links. As soon as people click on them, this PUP can be downloaded immediately.

What’s more, this product made by cyber criminals can be sent to the innocent computer users’ computers through spam E-mails. Cyber hackers can forge this PUP.Optional.BrowsersApp.A as a useful attachment that can be opened, also, the titles of the E-mails can be forged as well. When people convince the E-mail they have got is a piece of legal letter and click the executable file of this PUP which is covered as an attachment, this PUP comes in. Once this PUP gets installed, it can start to damage the infected computers. Like virus infection, this kind of computer threats can be easily detected by many reputable anti-virus programs. However, what make the situation worse is that this infection can able to replicate itself to many locations on the infected machine, and it can even corrupt some system files to avoid being caught be the scan of removal tool.

PUP.Optional.BrowsersApp.A can exploit the loopholes on the infected machine to download many other computer viruses. That is a part of purpose that hackers want to achieve. By downloading other kinds of computer malware, cyber hacker can get the opportunities to access the infected computers remotely and secretly. The whole system can be messed up if hackers are able to take control of it. This PUP can corrupt the system registry by adding its own entries into it. Many other system settings can be changed. In this case, the performance of the infected machine can be really weird and slow.

Some Traits about This PUP

-Can slow down the performance of the computer, or even blue screen.
-Can create many junk files which occupy a lot of space in hard drive
-Can download other malicious programs into computer, which make further damage.
-Your sensitive information can be stolen by hacker who can access to your computer with the help of this Trojan.
-Cay give you many redirects all the time no matter what you are doing.
-May pretend as an anti-virus program and cheat you that computer is in dangerous, and ask you to pay to remove the threats.

NOTE: If you find any of these symptoms on your computer, that proves your PC is under attack and seriously infected. If you are not a computer savvy, Please contact YooSecurity Online PC Experts to remove this PUP.Optional.BrowsersApp.A for you.

Manual Removal Guide of PUP (For Computer Literate)

There is a removal guide of PUP provided here; however, expertise is required during the process of removal, please make sure you are capable to do it by yourself.

Step 1: Find Ctrl, Alt, and Delete these 3 keys and then press them together to open task manager to end the process related to this PUP, the name of the process of it is random.

XP task manager

Step 2: Try to find Folder Options in Control Panel, select the View tab, and then tick Show hidden files and folders and non-tick Hide protected operating system files (Recommended) and then click OK.


Step 3: Try to find the files which relate to this Trojan, and delete them all.

Step 4: Click on Start button at the right lower corner, then click on Control Panel


Then you will come to the Control Panel windows, click on Add and Remove Programs


Then try to find the program which relates to this PUP, highlight it and choose Remove, the program’s name is random.


Step 5: Click on Start button or press Win+R, then type regedit in the box to open Registry Editor, after that, try to find
C:\Users\profile name here\AppData\

Similar video guide to modify Windows registry:


PUP.Optional.BrowsersApp.A is a kind of computer threat that can help many other computer infections to infiltrate. When people come to some wrong websites or click some harmful links, this thing can get a chance to sneak into the visiting computers. When it is activated on the infected computer, the whole computer can perform abnormally. It can slow down the performance and cause many unwanted problems on the infected computer. People can get a complete crash if this thing stays a long time on the affected machine. At that time, people cannot be able to do anything on it.

Suggestion: To follow removal guide that mentioned above, a level of computer knowledge is needed. Still can’t get out of PUP.Optional.BrowsersApp.A? Contact online experts for help now!

Published by Tony Shepherd & last updated on October 5, 2014 6:18 am

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