I have a few Windows 7 laptop computers and my problems started about 1-1/2 years ago, right after I had my computer repaired by a local guy in the neighborhood who seemed to know what he was doing.
Let me start with my most recent problem. My phone number is listed online for my business and I suspect it was harvested and added to various robo/telemarketing sources. I have been getting calls for a few years. It used to be a few a week, but now it is many a week.
This is a private cell phone and I registered it on the do-not-call site years ago. I checked recently and it's still there.
Last month I was getting about forty calls a month. It got to the point where I wasn't answering out-of-state calls. I'm not big on telephone use and rarely got out of state calls anyway. The next step in this harassment was running these robo calls through some service that reports the caller ID with my area code. I have stopped answering my phone, period, and hope if it's a legit call, that they leave a msg.
About three weeks ago I got fed up and started reporting this calls as complaints on the FCC customer complaint site. I don't know exactly how the FCC handles these complaints but I suspect that if they contact the offender, my phone number is supplied. Now I'm getting MORE calls. I check each call on a site that lists robo/telemarketer numbers and verify that others have received unsolicited calls from the same numbers.
A few days ago, I got a call and went to look it up and I couldn't get to the site. I got an error msg unlike one I had ever seen before, stating that the connection timed out. I tried a different site that provides the same information (listing robo caller numbers) and I couldn't get on that one either. And a third one. Then I tried these sites on two other computers I have in the house. It was the same (timed out) for all three. I called my ISP (Comcast) and had the reset my wi-fi password and then I had no problem getting to those sites. Today it happened again. I have no other internet issues with any of my computers. My AV software (Webroot) finds nothing, and neither does Malware Bytes.
Back to my other computer problems, I have a few programs that malfunction. One is a music notation program and some of the special features do not work at all. The program is Finale. I've been in touch with the tech guys there and they can find no problem, other than they have had some issues with computers running Webroot. Turning off the strong security setting does not resolve my issue.
When it happened again, I called Comcast (again) and the techie who checked my modem (he didn't tell me exactly what he did) assured me that it is impossible for someone to crack into my wi-fi network. I am using only the equipment for wi-fi supplied by Comcast.
I have a reputation for tech problems and it seems issues pop up with just about every computer I use. It' is uncanny, the level of problems I have. I do not visit sharing sites, all my software is legit. I don't download music or movies. I don't visit any porn or gaming sites.
I wonder if my computer has a backdoor? I was really uncomfortable with that guy who fixed my computer. Maybe I'm just being paranoid, but then I have so many computer related problems, I have reasons to get in that paranoid state of mind.
I'm not a tech-guy but was wondering if there is anything I can do, like install a secure firewall, close all traffic and look for suspicious packets.