Don't know how to reset my device (Soft reset)

1. Go to Settings -> Tap on General -> Select Reset
   
      
   
   
   
2. Tap on Reset All Settings -> Enter the password of the synchronized account -> Tap on Reset All Settings
   
   

        
   
   

The System Restore feature ‘rewinds' your Windows to a certain restore point in the past when your computer was working properly, without affecting your documents. 

To restore your computer:

1. Go to the start menu -> Type sysdm.cpl -> Click sysdm.cpl
   
   
   
   
2. Select the System Protection tab -> Click the Windows 10 C: drive -> Select System Restore
   

   

   
   
   
3. Click Next
   

   

   
   
   
4. Select Choose a different restore point -> Click Next
   

   

   
   
   
5. Select Show more restore points -> Choose a restore point (from the yellow part of the window) -> Scan for affected programs (optional)
   

   

   Click Close once you see the list of affected programs
   

   

   
   
   
6. Click Next
   

   

   
   
   
7. Click on Finish
   

   

   
   
   

Note: In order for this feature to work you need a restore point from the period when your computer was working properly. If you didn't create one, (usually they are created automatically) this solution won't work for you.  Check out the other solutions.

The System Restore feature ‘rewinds' your Windows to a certain restore point in the past when your computer was working properly, without affecting your documents. 

To restore your computer:

1. Go to the start menu -> Type System restore
   

   

   
   
   
2. Click Next
   

   

   
   
   
3. Select a restore point 
   

   

   
   
   *You can also check the Show more restore points box to see all the restore points stored on the system.
   
   **Click the Scan for affected programs first, which will show you what programs have been installed after the restore point was created
   

   

   
   
   
4. Wait for the process to complete
   
   

Note: Do not interrupt the process to avoid irreversible software damages and data loss. If you use a laptop, connect it to the AC adapter before you start restoring Windows.

If you use Windows 8(.1) and your computer starts misbehaving, and you want to prevent data loss (of pictures, videos, sounds) consider refreshing Windows. By refreshing it you will restore the factory settings and won't lose personal data. 

To refresh Windows 8(.1):

1. Move the mouse pointer to the top/bottom-right corner -> Click Settings  -> Select Change PC settings.
   
   

   

   
   
   
   
2. Select Update and recovery -> click on Recovery
   

   

   

   
   
3. Select Get Started under Refresh your PC without affecting your files
   

   

   
   
   
4. Insert the DVD that contains the Windows 8(.1) installation files (if needed) -> Click Next -> Click Refresh
   

   

   

   

Note: You'll have to wait for approximately half an hour for the process to complete, and the PC will restart a few times. Don't interrupt the procedure.Also, if you use a laptop, connect it to the AC adapter to avoid sudden shutdowns.

By refreshing Windows 10, you won't lose all of your personal files such as pictures, music, videos, Only the settings will be reverted to the factory ones.

To refresh Windows 10:

1. Go to the Start menu -> Settings
   

   
   
   
   

2. Select Update and Recovery/Security (depends on the Windows version)
   

   
   
   
   

3. Select Recovery (if you clicked on Update & security) -> Click Get started under Reset this PC
   

   

   
   
   
4. Select Keep my files
   

   

   
   
   
5. Click Next once you see the applications that might be modified (deleted or those that need to be reinstalled)
   

   
   
   
   

6. Click Reset
   

   
   
   
   

Note: Do not interrupt the process to prevent data loss. If you use a laptop, connect it to its AC Adapter.

1. Go to Settings -> Scroll down to find Backup and (&) Reset -> Tap on it
   
   
   
   
2. Tap on Factory Data reset -> Tap on Reset phone
   

   
   
   
   

Note: Don't select the erase-internal-storage checkbox because you will delete your personal data (pictures, videos, music) as well.

Make sure that your phone is turned on.

1. Press and hold the Volume down (-) and the Power (Sleep/Wake) buttons at the same time
   
   
2. Once your phone vibrates release them

Note: Do not touch the screen during the process (not even when the slide down to power off prompt appears)