My computer gets extremely slow when using any browser

I can do anything on my computer and everything runs very smooth as long as I don't open a browser. I can open very large images, open any program like Photoshop or any other program that normally needs some time to load and it loads very fast, but as soon as I start any browser it doesn't respond. The browser opens very slow but no webpage is loading and a message on the top "Internet Explorer (Not responding)" is displayed on and off.

This happens whether or not I'm connected to Internet. One could expect that with no connection the browser would at least load pretty fast but with a message "...the page couldn't be found".

Also as soon as I have open a browser and having this issue, now everything else on the computer (that previously was no issue) also takes forever to load. Now any action can take about 15-30 minutes.

Also when clicking CTRL+Alt+Delete I get the error message:
"Failure to display security and shut down options
The logon process was unable to display security and logon options when CTRL+ALT+DELETE was pressed. If the operating system does not respond, press ESC or restart the computer by using the power switch."

BUT, if I click CTRL+Alt+Delete as soon as I reboot the computer, prior to open any browser, it's normal and I can select the task manager.

So what can be the problem?

I figure that maybe my harddrive is about to crash, so I was rushing to make a clone of the harddrive. Then when I started Windows from this other harddrive (with clone) instead - it's still the same thing. So the problem isn't the harddrive.

This issue have happened two times before, but the first time it did get back to normal after an hour and the second time it got normal after rebooting but this time nothing seems to work.

The first time this happened was about two weeks ago after downloading a trial of Visual Studio Ultimate 2013, but I doubt it has anything to do with that. I guess this just happened to occur at that point.

So what should I do? Any suggestions?

Should I do a system restore to a previous date?
Put in the Windows DVD and try to repare Windows 7?

Everythings is OK when browsing if I start Windows in Safe Mode.

Hi and welcome to Sevenforums,
Which security suites do you use ?
It sounds like a startup item is a bit buggy to say the least or a browser add-on run amuck,

Lets start with your browser add-ons,
Close all browsers and use the start menu search,
type in the search box,
manage add-ons
You should land in internet options on the Programs section,
Click on the Manage add-ons button,
Make sure on the bottom left column Show All Add-ons is selected and post some screen shots,
Use the links above my signature image if you need assistance in the process,

Hi thanks but we might need a swede to complete the mesh
Post the scan results,
Review Jacee’s instructions to run Adwcleaner here post #7,
Ignore the title of the thread,
Instant Savings App
Screen shot of the download button to use for Adwcleaner
You can use these free tools to see if they find anything,
Manually Update them before running full scans,
Try not to use your computer while the scans are running, (one at a time of course).
Uncheck the box to Activate the Free trial from the final install options,
http://www.malwarebytes.org/products/malwarebytes_free
http://www.superantispyware.com/?tag=SUPERANTISPYWARE
This one is the longest up to 4 hours, the others are only about 45 minutes,
http://www.microsoft.com/security/scanner/en-us/default.aspx

Yes please post all 3 scan results,
Pc speed up where did you download it from exactly post a direct link to the download ?
If Adwcleaner tagged it's most likely corrupt,
Cheers.

Hi thanks,
I doubt Adwcleaner found anything worth saving,
Clean all but I'll request your question be moved to the security section because your system is loaded with corruptions,
Post the other 2 scanner results/ Malwarebytes Custom scan select the drive to scan usually C/ Superantispyware Full scan,
Cheers.

I have attached the scan results.

When using Malwarebytes I couldn't save as txt. Everytime I tried that the program crashed. I could only save as xml. In order to upload it here I had to save it as txt which makes it looks a bit messy with all the xml code in it. If you save it as xml again and opens it with a software that adds coloring to the code, then I guess the most important parts would stand out a bit more.

I did clear everything that AdwCleaner found.

Malwarebytes Anti-Malware did found a lot that I put in quarantine.

SUPERAntiSpyware Scan did also found a lot that I deleted.

Microsoft safety scanner didn't found anything.

Maybe it is the extension FVD Speed Dial that causing all this, because I created a new chrome profile without this extension and it work like it should, but as soon as I open a profile including this extension then everyting slows down and freezes for a while.

Maybe the best way is to uninstall Google Chrome, install again and retrieve all the settings with Google sync.