Welcome to BleepingComputer.
Regarding your sisters computer:
Did this problem just start, or did she have it from day one?
If from day one, she could try reinstalling IE.
If the problem is recent, she might have a spyware/malware problem, If so, I recommend posting a HijackThis log to be analyzed.
Have her download the latest version of HijackThis (HJT), from here
If she can't get to the site in IE, you could download it for her, and burn it to a disk, then load it onto her computer.
Put HijackThis in a Permanent folder:
Click My Computer / C: / File / New / Folder / name the folder; HijackThis
, in this folder.
This is a mandatory
step, for the backup and restore functions, of HijackThis, to be able to work.
Read the pinned post in the HJT forum, here
Then, run a log, and post it in the HJT forum, at this link
. Do not
, fix anything, yet.
A member, of the HJT Team, will help you out.
It may take a couple of days to get a response, but, the HJT Team are very busy. Please
, be patient, these people are volunteers. They will help you out, as soon as possible
Once you have made the post, please
, DO NOT
make another post in the HJT forum, until it has been responded to by a member of the HJT Team. The first thing they look for, when looking for logs to reply to, is 0 replies
. If you make another post, there will be 1 reply
. The team member, glancing over the replies, might assume someone is already helping you out, and will not respond. So, just make your post, and let it sit there, until a team member responds. This way you will be taken care of, in the most timely manner.
That way we can eliminate the possibility of spyware/malware, being the cause of your
Another alternative would be to install another browser, which is advisable anyway, for situations just like this. I recommend Firefox
. This should at least let her get onto the internet. You can use as many browsers as you want. You don't have to uninstall one, to run the other one.
Is she using these basic security programs?aČ free
-a complementary product to antivirus software which is specialized in protection against harmful software. Antivirus software often features an inadequate protection against Trojans, Dialers and Spyware. aČ fills this gap.Ad-Aware
-A good program similar to SpyBot S & D.Spybot S&D
-Detects and removes spyware, of different types, from your computer.SpywareBlaster
-A good program that prevents spyware from being installed on your computer in the first place. This program is always running in the background, protecting your computer. It prevents the installation of bad active X controls found in web pages.SpywareGuard
-A nice compliment to SpywareBlaster. This allows you the option to prevent downloads that contain bad active X controls.
If not, she needs to. These programs, updated
and used regularly
, will do a lot to keep your computer clean of spyware, trojans, keyloggers, browser hijackers, etc...
Download them, update
them, and then run them.Important:Please
read this tutorial
on Spybot S&D before using it. Spybot can do SERIOUS
damage, if not used properly.
I hope this helps out.