For a long time I have been running Windows OS's that I have downloaded and now that I have have came across I was unaware of using a possible hacked version of Windows 7 beyond the activation hacks. I have always read the descriptions of what I was downloading and always performed virus scans before installing them. Right now I am running Windows 7 on my net book and it may be a beta that has been put together. What made me start looking into this situation was that I was trying to load that copy onto a Virtual PC on my legit vista machine. It kept hanging at the Decompression of Files. I thought that was weird since I loaded it on my net book and others just fine. Now that I have found this site, what are the risks of running a Home brewed version of Windows 7 that seems legit from the outside. I am pretty computer savvy but I never figured that I would run into this type of concern. I took the ISO of the version I have and Hashed it. (Hashing is very new to me but figured it out quick) and doing an extensive search I have not found a matching Hash here on this site or anywhere of the site links provided from here. To sum it up I have been using this cracked windows 7 now for at least 3 months and now am wondering if I am at risk for sensitive information. And if there is a way to check if it has ever made an unauthorized connection. I do use an external firewall on my home network and it has never went off but on my net book I use hot spots all the time when out and about. And you guys all seem to know what you are doing here. I have paged through pages and pages of threads and topics here and I am just amazed of how uninformed I was about all the risks of using any OS that has been tampered with. On a side note I did find a copy of 7 and I did the Hash and it checked out by using the info on this site. And it loaded on my Virtual PC just fine.