I do a hard reset get to the menu and when i press the power button to reset it dont do nothing?

make sure you do this right or you could end up in more trouble.
if you are not sure what to do then dont do this..
Simple video on how to hard reset Nextbook Android Tablet. Power off device, select volume up and then power, hold power for 5-7 seconds and let go without releasing volume up. When u get the android menu scroll down to wipe data navigating with the volume buttons and then to wipe data.20 Aug 2013

Nextbook Android Tablet Hard Reset - YouTube

or read this before you do it..
How do you hard reset Nextbook device

According to eHow.com: " E-Reader Soft Reset

• 1 Open your Kindle's Menu while on the Home screen. Do so by pressing the Menu button, or the onscreen Menu icon for Kindle Paperwhite owners. Select the "Settings" option.
  
• 2 Choose "Menu" again from within the Settings menu. This displays a different menu than before.
  
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• 3 Choose the "Restart" option. Wait while your Kindle powers off and on again.
  

E-Reader Hard Reset

• 1 Charge your Kindle e-reader before performing a hard reset. Charging helps ensure your problem isn't related to the device having a low battery.
  
• 2 Hold down the Power button for 20 seconds. The screen will change after a few seconds, but continue holding the power button for the full 20 seconds before releasing.
  
• 3 Wait while your Kindle restarts.
  

E-Reader Factory Reset

• 1 Press your Kindle's Menu button. Select "Settings" from the menu.
  
• 2 Open the menu once more from within the Settings window. Select "Reset to Factory Defaults," or "Reset Device" if you're using a Paperwhite.
  
• 3 Select "Yes" in the confirmation window after reading the warning. Wait while your Kindle restarts and restores.
  

Fire Soft Reset

• 1 Hold the Power button down for three to five seconds. A Shutdown window appears.
  
• 2 Tap the "Power Off" button in the Shutdown window. Wait for the Fire to shut down completely.
  
• 3 Press the Power button to turn the device on again.
  

Fire Hard Reset

• 1 Plug your Kindle Fire in and give it time to charge before performing a hard reset. This helps ensure your issues aren't related to having a low battery.
  
• 2 Hold down the Power button for 20 seconds. The Kindle Fire will shut down.
  
• 3 Press the Power button to turn the Kindle Fire back on.
  

Fire Factory Reset

• 1 Swipe your finger down from the top of your Kindle Fire's screen, presenting the Quick Settings menu.
  
• 2 Tap the "Settings" option and select "Device."
  
• 3 Select "Reset to Factory Defaults," then tap the "Reset" button. Wait while your Kindle Fire restarts and restores.
  

Read more : http://www.ehow.com/how_6122863_reset-kindle.html

1. Turn the power off.
2. Find the tiniest RESET hole on the side of the tablet next to the micro USB charger port and use a paper clip or similar tool to click it, press gently the RESET button in the hole. While you are pressing the reset button press and hold the Power button also until the Proscan logo comes up and the Android robot is displaying on the screen. (Note this is not the RESET hole on the back of the device.)
3. Release the Power and the reset button.
4. To get into the Android recovery menu you have to click it push it down again the tiny little RESET button in the hole and the POWER button together. Keep pushing the two buttons until the recovery menu displayed.
5. To highlight the options use the paper clip and press the RESET button to move down the highlighter bar until you get to Wipe data / Factory Reset. Press the POWER key to get in the next menu.
6. Move the bar again using the reset button and highlight Yes -- delete all data and press the POWER button.
WARNING
If you perform a Hard Reset, all user applications, user data and DRM licenses will be deleted. Please remember to backup any important data before performing a Hard Reset.

try to hard reset it:
1. turn it off
2. press volume up + power button
3. when logo appeared leave the power button but not the volume button
4. choose from recovery menu wipe data/factory reset then select yes then choose wipe cache partition using volume buttons to navigate and power button to select.
.
.

This does not work. I am getting nothing. Please help

This is the "master" reset procedure. No other way of clearing the unlock pattern.
*******This procedure will delete all items (file's) and entries on the MID7015******


Step 1- Power the unit off. Press and hold the "Power Button" till the "Device Option menu appears.

Step 2- Click on "Power Off and select "OK" .

Step 3- Once the unit has been turned off. Press and hold the "reset" button and "power" button simultaneously for eight seconds.

Step 4- The following screen will appear. Press the "reset" button.

Step 5- The Android system recovery screen will appear.

Step 6- The "Home and Menu" button will allow you to go Up and Down the Android system recovery screen.

Step 7- Press the menu button to go to "wipe data/factory reset". . Press the "reset" button.


Step 8- The following screen will appear. .
Step 9- Press the Menu" button to select "Yes- delete all user data".
Step 10- Press the "reset" button.

Step 11- The following screen will appear .

Step 12- Press the "reset" button to reboot/restart the unit.

THERE IS NO USE OF HARD RESET I THINK THAT MAY BE WRONG WITH UR HANDSET POWER &VOLUME KEY BETTER U GO TO SAMSUNG SERVICE CENTRE
DONT PUT ANY OUT SOURCE IT MAY TEMPER UR WARRENTY

Please follow the below steps for a factory reset.

1. Press and hold Volume Up button
2. Press and hold Power button too
3. Release power button, but please dont release Volume Up button
4. You will be seeing a menu now. Press Volume Up/Down to move the control to Factory reset
5. Press Home to do a the Factory reset

Please let me know if you still has issues :) Cheers