All good points for being safer thanks!
I have a windows 7 pc that I am using now for the last 2 months, before that I was always ubuntu. What is a good malware checker that I can try to use just to be 100% certain. I only started using this computer because I need to use photoshop and some other programs that only work on windows.
I'll be safer with the blockchain account and do the usb pen thing, good idea.
Malwarebytes is free forever, I have the upgraded version, still good though
https://www.malwarebytes.org/For a free Antivirus scanner just a 30 day trial
http://www.eset.com/us/free-trial/ but will do the job scanning the system, you can have both scanners running at the same time.
Some viruses can only be detected and removed when an infected windows isn't running. You can use a live cd to detect and remove them like the one from Avira antivirus. The download link to the Avira antivirus live cd and its user manuals is here.
http://www.avira.com/en/download/product/avira-rescue-systemThese quotes are from its manual. First it tries to download the latest virus definition updates, if it can't connect to the internet it uses the virus definitions included on the cd.
In the first instance, the scanner updates the Virus Definition File (VDF) and the scan engine. If no Internet connection is established, the scanner searches for infections with the VDF and engine versions found on the ISO file.
After its finished scanning it shows you whether your computer was infected.
The Results area shows whether your system was completely cleaned and repaired. By clicking the Report button, details about the detections will be displayed.