* You see too much pop-up advertisements.
* Your browser has toolbars that you haven’t installed.
* Your homepage has changed (and you can’t change it back).
* Other settings have changed without your permission.
* Your computer is slow.

To get rid of spyware and keep your computer clean you can use an antispyware or even more.
You can download a antispyware software. There are 10 good anti-spywares.
here is the reviews:

You can download one and scan your system.
All are safe and can be trusted.

you can get malwarebytes here,
this is a direct download link
so you should have no trouble getting it.
click on this link ↓ and then select run.
close all open windows including this one.
INSTALL IT TO YOUR DESKTOP,
update it, then run a full scan
Once the scan is finished you should see: The scan completed successfully.
Click “Show Results” to display all objects found..
Hit OK then click the Show Results button.
Click the Remove Selected button.
Wait for the program to remove the found malware and then close it.
.
some viruses will try to disable it
so if malwarebytes will not startup
then go into the folder it is in and rename the mbam file to ***
then double click on the file you just renamed to start it up.
.
after you have used malwarebytes then do this online scan.
to make sure you have nothing else hiding away.
preferably in safe mode with networking.

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