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		#1 | 
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			 Member 
			
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				Problem installing latest update on Windows
			 
			
			
			WIN 10 
		
	
		
		
		
		
		
		
		
		
		
		
		
			Calibre 64bit 6.18.1 Error: "Error writing to file 138310.rbf" I went to the PROPERTIES: Unchecked READ ONLY Gave FULL permissions to all listed USERS not greyed out Now another RBF file gets the ERROR WRITING TO FILE Last edited by Rahm; 05-28-2023 at 03:15 PM. Reason: What I tried  | 
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		#2 | 
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			 Well trained by Cats 
			
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			I suspect you security software is being nasty or you have tightened your settings someplace that prevents the install backup from being written
		 
		
	
		
		
		
		
		
		
		
		
		
		
	
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			 creator of calibre 
			
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