Hi, I recently downloaded a programme called Advanced WindowsCare V2 and performed a scan on my computer. Its finds spyware, registry issues etc. Its altered something because my computer shut down and i am having trouble booting up. A black screen comes up giving me options. Loading windows normally or from last known good configuration results in a black screen. Booting up in safe mode results in a freeze. What are my options available that wont lost me the data on the hard drive?