Hello, my laptop has severely slowed down and all the icons have gone very small on the desktop. Im pretty sure it has viruses. Could i get any assistance with this please?
Follow the steps here https://forum.avast.com/index.php?topic=53253.0
Then attach the logs in this thread
Okay, cheers essexboy. Here are the requested logs.
The file named protection log is from malwarebytes, and the scan file will be attached in the next reply. cheers
malware scan log
Could you let me know what problems remain after this
CAUTION : This fix is only valid for this specific machine, using it on another may break your computer
Open notepad and copy/paste the text in the quotebox below into it:
CreateRestorePoint: AppInit_DLLs: c:\progra~3\bitguard\271832~1.68\{c16c1~1\loader.dll => c:\progra~3\bitguard\271832~1.68\{c16c1~1\loader.dll File Not Found AppInit_DLLs: c:\progra~3\bitguard\271769~1.27\{c16c1~1\loader.dll => c:\progra~3\bitguard\271769~1.27\{c16c1~1\loader.dll File Not Found Toolbar: HKLM - No Name - {CC1A175A-E45B-41ED-A30C-C9B1D7A0C02F} - No File HKU\S-1-5-21-4255502416-1693395883-2113489983-1001\Software\Classes\.exe: => <===== ATTENTION! Reg: reg delete HKLM\SOFTWARE\Policies\Microsoft\Windows\IPSec\Policy\Local /f Reg: reg add HKLM\SOFTWARE\Policies\Microsoft\Windows\IPSec\Policy\Local /f RemoveProxy: EmptyTemp: CMD: bitsadmin /reset /allusers
Save this as fixlist.txt, in the same location as FRST.exe
https://dl.dropboxusercontent.com/u/73555776/FRSTfix.JPG
Run FRST and press Fix
On completion a log will be generated please post that
THEN
Please download AdwCleaner by Xplode onto your desktop.
[*]Close all open programs and internet browsers.
[*]Double click on AdwCleaner.exe to run the tool.
[*]Click on Scan.
[*]After the scan is complete click on “Clean”
[*]Confirm each time with Ok.
[*]Your computer will be rebooted automatically. A text file will open after the restart.
[*]Please post the content of that logfile with your next answer.
[*]You can find the logfile at C:\AdwCleaner[S0].txt as well.
Okay so we ran the fix and here is the fix log.
Once you have run AdwCleaner could you let me know what problems you have
Here is the adware cleaner log
What are the current problems ?
Well the laptop turns on alot faster now, so thanks. But the icons are small on the desktop still and it seems like certain programs like mozilla take a long time to load up. Apart from that its alot better.
Have you changed the icons within windows to small ?
no, just was like that when i turned it on one day, is there a way to enlarge them in the settings?
Changing icon size … http://social.technet.microsoft.com/wiki/contents/articles/909.changing-windows-7-desktop-icons-size.aspx
Subject to no further problems 
I will remove my tools now and give some recommendations, but, I would like you to run for 24 hours or so and come back if you have any problems
Now the best part of the day ----- Your log now appears clean 
A good workman always cleans up after himself so…The following will implement some cleanup procedures as well as reset System Restore points:
Remove tools
Download and run Delfix
Select the options as shown
https://dl.dropboxusercontent.com/u/73555776/delfix.JPG
Now that you are clean, to help protect your computer in the future I recommend that you get the following free programmes:
CryptoPrevent install this programme to lock down and prevent crypto ransome ware
https://dl.dropboxusercontent.com/u/73555776/CryptoPrevent.JPG
Update and run weekly to keep your system clean
Click on the link above to be taken to Unchecky.com
click the very large Download button.
click Save
Click Open folder
Right click on the Unchecky_setup and choose to Run as Administrator
Once open click the Install button.
Then click on Finish
Unchecky is now installed and will help you keep unwanted check boxes unchecked, this is a fire and forget programme 
It is critical to have both a firewall and anti virus to protect your system and to keep them updated.
To learn more about how to protect yourself while on the internet read this little guide Best security practices Keep safe 