That's not how you apply worksheet protection: 
1. Select the whole sheet and choose Format>Format Cells>Locked 
2. Select the editable cells and choose Format>Format Cells>Unlocked 
3. Choose Format>Protect sheet and apply your preferred options 
 
Getting rid of the read-only prompt is as simple as choosing 'No' at the opening prompt, then using Save As, then Tools>General Options and uncheck the 'Read-only recommended' option. 
 
See attached.
		 
		
		
		
			
		
		
		
		
		
		
			
				__________________ 
				Cheers, 
Paul Edstein 
[Fmr MS MVP - Word]
			 
		
		
		
		
		
	
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