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hi, BIOS or CMOS password are usually reset by a jumper or shorting pins. if your are the owner of the laptop you can go the brand site and ask for a universal default password. this is the safest way. however, if you don't want these hassles you can follow below procedure but with risks. it is for you to follow or not.
1. when you prompt the with password. type anything.
2. 3 wrong password will show "system disabled" with codes.
3. Turn off your computer, remove the adapter and battery on your laptop for a couple of seconds.
Reboot your system and see if password is disabled.
im not responsible for any damage for system. it's your own risk.
The blue screen is extremely irritating I'll admit to you. Usually it happens when Windows doesn't want to comply with some hardware/software that is being run. I know this happens every time I plug in my webcam.
In your start menu search bar type in: msconfig
Under the startup tab, click to disable all. This will prevent any third party software on your computer from interfering with Windows, giving you a blue screen.
Hope this helps!
There is one solution for your BSOD problem and it's free,, As soon as you turn laptop on, keep tapping F8 until another screen appears,, then choose safe mode with networking.
Type tdsskiller.exe into google and download from the first site listed. Download the exe not the zip.
once downloaded install to your desktop. Once installed open tdsskiller and run a scan,
Once scan is complete select cure. Once cured, Please reboot your system and you will have no further blue screen errors.. Hope this helps and please rate,,
Usually blue screens are caused bu problems with hardware. Since the laptop was dropped, I would suggest opening the access doors and taking out each removable component and then reseating them back in their positions. It sounds like perhaps something has been jarred out of place such as a memory module, hard drive, etc. Start with those two and try to boot the laptop after each try.
The blue screen states that it has a hardware error. Usually the problem is in the memory card. All you have to do is open your computer (cpu) and removed the memory card. Try to blow the memory slot and try to clean the memory card pins with a clean cloth and return it back to the memory slot. After that try to turn it on if it works. If not, try to replace the memory card if you have a spare.
Aside from memory card problem is the hardisk problem but usually rare. Try the memory step first before the hardisk step.
I have had this before with my Dell Latitude C540/640. I don't know the ACER 5720 but here's a couple possible fixes for you.
1. Press the function key ( "fn" key, generally a blue key or blue lettering and usually in the bottom left corner of your keyboard) and press F8 (may be a different key on your laptop, again, not familure with the acer. The key usually has either CRT/LCD printed on it, or two monitors on it, one its just an outline of a monitor and the other is filled in. This will run you laptop through the three monitor options it has. (LCD - LCD & External - Just External)
2. Try closing and opening the lid of your laptop. Sounds a bit strange but it works sometimes for me. My guess is when you close you screen it would "dim/turn off" the LCD and re-opening it convinces it to turn the screen back on.
This is going to be a loose connection somewhere inside the machine. I recently had a machine with the same problem in my shop. Every time it was picked up and tilted to the left it would go to blue screen, I had to completely disassemble the machine to find the problem. Turned out to be a media cable that had slid slightly out on one end. As for the check disc, a blue screen generally indicates an operating system error or interruption, this is what the machine recognizes it as and runs the check disc. It doesn't realize, that in your case, the operating system interruption is due to hardware instead of software, and we know this because it does it when moved. If it were software it would do it at any time.