Everytime i try to open Google, Superfish.com takes over my window. How do I stop this?

Check wiki...

Superfish Wikipedia the free encyclopedia

In this situation, your best bet is to go into your options, enable apps from an outside source, and then navigate to here: http://www.androidpolice.com/2013/10/21/download-latest-google-play-store-4-4-21-with-slide-out-navigation/ OR just do a quick google search for Google Play store apk. Install it form here to replace your current one.
This happens when your updates to the play store get interupted or sometimes they just corrupt for no good reason.

Try changing the battery, if windows 10, the power settings may need adjusting..just Google power settings windows 10

If it doesn't come up, then you might not have set google.com as your home page or your search engine. It's best to set your homepage as google.com so that you will never have problem with your search engine. If your browser is googlechrome, click the wrench icon on top right hand corner of your googlechrome and select option, now in the Home Page section, type in google.com and close it. Now everytime you open your googlechrome, google.com will open up, also everytime you click the Home button, google.com will automatically open up.
If it's Internet Explorer, click the "Tools" on the Menu, select "Internet Options" and then in the General tab, type in google.com of the Home Page section and then click "Ok" to close it, you can also click "Apply" but never try to close it directly before clicking Ok or Apply, the changes made won't be saved.
If you need further help, let me know.
Good Luck.
Thanks for using FixYa.

When you open too many windows on Google Chrome,you are making the browser take up more memory space.More the tabs you open, More the memory space you consume,more dangerous it is for the application(Google Chrome). Since the chrome.exe cannot withstand too much of load on it,it will crash.
You can observe that chrome crashed with too many tabs open will crash on restart too. It is because of the same reason that you make chrome to consume more memory for its operation.

My best recommendation is to try an alternative browser. Good free options include Mozilla Firefox, Google Chrome, or Opera.

www.google.com/chrome/

www.mozilla.com/

www.opera.com/

Avast is a terrible anti virus program.

Download Malwarebytes. Run it. Install MSE.

How To Set Your Browser Start Page in Internet Explorer

1. Click on your Internet Explorer icon; you'll find this in your Start menu, or the toolbar at the bottom of your desktop window.
2. Type in "Google" to IE's search box at the top of the browser window (this is just an example, you can use any website that you want).
3. Arrive at Google search engine home page.
4. Go to toolbar at the top of browser, and click on "Tools", then "Internet Options".
5. At the top of the pop-up, you'll see a "Home Page" box. The address of the site that you are currently at (http://www.google.com) is there. Press the "Use Current" button to specify this page as your home page.

We will work out a solution step by step. Click here and go to Irfanview website. Download the program.

Close all programs and internet explorer windows.

Run the installer (make sure that no program or internet window is open) and select images only from the installer menu when prompted.

After installation, try to open images from google.