Hi, maybe your power adapter, its cable or plug is faulty, maybe some of your friends has the same type of power adapter to test it with your computer. If you have a DC Voltmeter to could check output voltage from your power adapter.
Click here to access the Acer warranty information page. This site will help you know the warranty status of your Acer machine. Type the serial number of your machine on the system Serial textbox and press Find Serial Number Button. You may locate the serial number of your computer at the bottom of laptop computer.
the short answer to your question is "No", in order to decrypt any file depending on the encryption process implemented, you would need either "a private key" or both parties will need the "public" and the other should have the "private"; I advice you not to have any one scam you into saying that this is possible because unless you have a similar system that was using this type of encryption it might not work. sorry for your loss!
Ok, it seems that this is a pretty common issue. I found a youtube video showing how to get around this. I watched some of it, the guys seems pretty competent. however, you might not be comfortable taking this thing apart or doing what he is doing. However, it is a relatively simple thing to fix for a competent repair person and I looked up new power assembly and they run around $25 on ebay. Here is the link for the video I found: https://www.youtube.com/watch?v=YMprUUBvlmo
There were a couple of other videos also that I didn't watch. However, if you just need this thing to work for a while and you intend to replace it in the near future and just need to get by for a short while, this should work. If you intend to keep this long term you might want to take it to a computer repair shop. Good luck. hope this helps.
and Page 10 of the manual
Keep your display clean.
Keep your head at a higher level than the top edge of the display so your
eyes point downward when looking at the middle of the display.
Adjust the display brightness and/or contrast to a comfortable level for
enhanced text readability and graphics clarity.
Eliminate glare and reflections by:
placing your display in such a way that the side faces the window or
any light source
minimizing room light by using drapes, shades or blinds
using a task light
changing the display's viewing angle
using a glare-reduction filter
using a display visor, such as a piece of cardboard extended from the
display's top front edge
Avoid adjusting your display to an awkward viewing angle.
Avoid looking at bright light sources, such as open windows, for extended
periods of time.
wireless has limited range and can be affected by walls, doors, glass. Some models of routers if they have removable antenna's can be replaced by highgain antenna's which can drastically improve your range.