I don’t know when I got this PUP.Optional.ToolbarWid in my computer. Actually, my anti-virus program detected it for me and I tried to remove it by the help of the tool. I thought it was gone after the tool had shown me there is not threat in my computer. But to my surprised, when I booted up my computer again, this thing came back again and the protection tool alarmed me to remove it as soon as possible. I did it for many times, but I think I was in a vicious circle because it always came back. How can I completely get rid of it?

Brief Introduction of This Trojan

PUP.Optional.ToolbarWid is a malicious Trojan horse which can access the target computer without user’s attention. Technically speaking, this Trojan can be classified into potential unwanted program, short as ‘PUP’. Trojan can be rapidly spread to one computer to another computer all over the world if they have the Internet connections. Hackers can conceal this PUP Trojan into some websites, and make it be able to invade the computers which are visiting those sites. Once computer connects to those web pages, cache files can be saved in computer hard drive, and this PUP can be one of them. Except infecting computer in this way, cyber hacker can bundle this PUP with other free programs which people can easily find and download for their own use. Without the spread in the Internet, computer can also be infected by inserting portable devices which contain this PUP. Trojan can go into computer without any man made activity, it can infiltrate in target computer automatically.

People may wonder why their anti-virus programs have already found its invasions in their computers, but still can’t remove it. As we can see, Trojan is a kind of tricky virus with a special character, which can self-reproduce, that means Trojan not only stay in only a path in computer hard drive, it can replicate its main part into many branches and hide them in very secret places. What’s more, this PUP.Optional.ToolbarWid can corrupt system files and implant into them. So, during the scan of anti-virus tool, as it hides in system key files, the scan will bypass them as those files cannot be deleted. For those people who always rely on their anti-virus programs to protect their computers from the virus and other threats, it is not easy for them to remove it, let alone how to analyze which file is infected and which one is not.

Once this PUP enters into computer, the system registry can be the first object to be modified. Also, system files can be corrupted as what we have mentioned above. The main purpose of this PUP.Optional.ToolbarWid is to display commercial advertisement to computer users while they are using the machine for work or something else. In order to attract people to purchase products from those pop-ups, usually this PUP shows you random pages in a very regular pattern. Do not be lured by those prices. If you pay, your sensitive information can be leaked out to remote hackers, they can use your bank detail or credit card for illegal use. In the meanwhile, this PUP can generate a lot of useless files which waste great capacity in your hard drive; in this situation, computer’s performance can be slower than before. To avoid further damage by this PUP, what you need to do with it is to get rid of it as soon as possible.

Some Traits about This Trojan

-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 adware.
-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.ToolbarWid for you.

Manual Removal Guide of Trojan (For Computer Literate)

There is a removal guide of Trojan 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 PUP.Optional.ToolbarWid, 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.ToolbarWid can be classified as an adware, but essentially, it is a Trojan which tries to collect money from innocent people by showing up with a variety of business advertisement all the time. It can disturb you from the time you boot up your computer, and even you close them all, they will pop up a few minutes later. Your browser can also be messed up and you can get many redirects from it. Do not ignore it; your computer can be slower and slower if you keep this nasty thing in your computer.

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

Published by Tony Shepherd & last updated on January 5, 2014 6:21 am

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