When laptop is powered on , the screen freezes at Samsung logo. Tried by removing the battery and ac and kept holding the power on button for one minute and then connected the power chord. But the problem is the same
Try starting up in "Safe Mode" and see if it will load into that. If it does, then you probably have something on the device that is hindering it. Virus, malware, bad program, etc. That you will need to remove before it will work correctly.
If it still won't load into "Safe Mode" either, it may be due to a bad update. In 10 sometimes the computers get stuck when an update doesn't install correctly or won't install. There are instructions below the "Safe Mode" instructions for this as well.
How to enter "Safe Mode" when booting the computer.
In Windows 8 and 10...
As your computer restarts, press F8 (possibly a few times) to enter "Safe Mode"
a. Press the "F4" key to Enable "Safe Mode".
(The computer will then start in "Safe Mode" with a minimal set of drivers and services.)
b. Press the "F5" key to Enable "Safe Mode" with Networking.
( Once "Safe Mode" with Networking starts, Windows is in Safe Mode, with additional network and services for accessing the Internet and other computers on your network.)
c. Press the "F6" key to Enable "Safe Mode" with Command Prompt.
(In "Safe Mode" with "Command Prompt" starts Windows in Safe Mode, with a Command Prompt window instead of the Windows interface. This option is mostly only used by IT professionals.)
Now sign in to the computer with your account name and password. (If you have one set.) When you are finished troubleshooting, you can exit "Safe Mode" restarting your computer.
In Windows 7/Vista/XP...
1. Immediately after turning on the computer, or restarting it (usually after you hear your computer beep), tap the F8 key, repeatedly, in 1 second intervals.
2. The computer will then display hardware information and run a memory test.
3. Next the "Advanced Boot Options" menu will appear.
4. In the "Advanced Boot Options" menu use the arrow keys to select "Safe Mode" or "Safe Mode with Networking" and press ENTER.
1. Turn off the laptop.
2. Turn off your WiFi, or take the laptop to an area where there isn't any WiFi. (If connected via Ethernet, unplug it.)
3. Turn on the laptop.
4. Once it fully loads, then turn on your WiFi again.
It should work now. Sometimes (especially in 10) updates, including those that come after a reset, can get the computer stuck. It happens when an update fails, for whatever reason, and the device continually tries to get it to install over and over. Leaving you 'stuck'. Until you take away its ability to continue trying the update, hence the no WiFi, then it should load.