Solved

Laptop cannot connect to Internet - Combofix nearly fixed it, but not quite

Posted on 2013-06-02
6
613 Views
Last Modified: 2013-12-06
My next door neighbour asked me to look at his son's Toshiba laptop which couldn't connect to the Internet and was taking forever to run anything.

It's running Windows 7 Home Premium.

This happened 12 months ago, Then I ran Combofix and Malwarebytes, then installed MSE and everything was fine.

This time Combofix found and deleted a couple of files in safe mode. Back in normal mode it loaded all it's programs, then after a minute it was back as it was.

I have tried running a Malwarebytes scan in normal and safe mode, but it stops responding after five minutes and the task manager reports 0% CPU usuage.

Any ideas - I'm stuck at the moment?
0
Comment
Question by:carolinems
  • 2
  • 2
  • 2
6 Comments
 
LVL 24

Expert Comment

by:aadih
ID: 39214373
Try a root-kit scanner, e.g., TDSSKiller:

http://www.bleepingcomputer.com/download/tdsskiller/ >
0
 
LVL 30

Expert Comment

by:ded9
ID: 39214670
Boot computer in safe mode with networking and check whether you can browse internet.

If yes then do a clean boot ...would also recommend a new user account ..old profile might corrupted by virus.

Clean boot process

Start-type - msconfig- click on startup tab- click disable all...then click services tab- put a check on hide all microsoft services ...and then click disable all....click ok and then restart the computer in normal mode.

If everything works fine in clean boot then enable five startup items and services at a time to find the faulty software.




Ded9
0
 

Author Comment

by:carolinems
ID: 39214852
TDSKiller didn't find anything.

Had to run this in SAFE mode as programs will not run in NORMAL mode.

Disabled everything in MSCONFIG and restarted.

I will restart 5 at a time as you suggest tomorrow.

Many thanks.
0
U.S. Department of Agriculture and Acronis Access

With the new era of mobile computing, smartphones and tablets, wireless communications and cloud services, the USDA sought to take advantage of a mobilized workforce and the blurring lines between personal and corporate computing resources.

 
LVL 24

Expert Comment

by:aadih
ID: 39214864
Try:

Scanning from a rescue disk (e.g., Kaspersky Rescue Disk 10):

http://support.kaspersky.com/us/viruses/rescuedisk >

Or any other.
0
 
LVL 30

Accepted Solution

by:
ded9 earned 500 total points
ID: 39215010
After disabling everything in msconfig...reboot ...check whether internet works....if it works only then start enabling 5 start-up and services entry at a time.


Ded9
0
 

Author Closing Comment

by:carolinems
ID: 39215502
All done. Someone had put McAfee on, which must have annoyed MSE. Once removed everything was fine.
0

Featured Post

U.S. Department of Agriculture and Acronis Access

With the new era of mobile computing, smartphones and tablets, wireless communications and cloud services, the USDA sought to take advantage of a mobilized workforce and the blurring lines between personal and corporate computing resources.

Question has a verified solution.

If you are experiencing a similar issue, please ask a related question

Suggested Solutions

If you thought ransomware was bad, think again! Doxware has the potential to be even more damaging.
New Windows 7 Installations take days for Windows-Updates to show up and install. This can easily be fixed. I have finally decided to write an article because this seems to get asked several times a day lately. This Article and the Links apply to…
In this video, we discuss why the need for additional vertical screen space has become more important in recent years, namely, due to the transition in the marketplace of 4x3 computer screens to 16x9 and 16x10 screens (so-called widescreen format). …
This Micro Tutorial will teach you how to the overview of Microsoft Security Essentials. This is a free anti-virus software that guards your PC against viruses, spyware, worms, and other malicious software. This will be demonstrated using Windows…

856 members asked questions and received personalized solutions in the past 7 days.

Join the community of 500,000 technology professionals and ask your questions.

Join & Ask a Question