Sorry Deejay if you want your PC unlocked then paying is the only way for some, i have read links to this and see that people cannot fix this at all using 2 PC's the only way you can stop it is by having a Firewall on, if you pay the problem goes away, sorry but it is the truth we might not like to admit we fell for a scam but many of us do, i had no access to any other PC or any way to find out what was going on, i thought it was genuine, my PC locked by the Police, like an idiot i went and got a voucher for £100 and entered the code into the link on my PC, my PC was unlocked immediately, i have not had one problem since, but like i say i now have my Firewall switched on, i felt like an idiot when i got in touch with my son, but at least i had my PC back working. i am not advocating that anyone else should pay, that is up to them but good luck trying to fix it. I can't find anything in your link that tells you how to get into a locked Computer, all them fixes are only if you still have access, how can i use a Malware program if i can't get my PC to work?
I do not negotiate with terrorists.