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			Hi stumped, 
 
thanks for your answer, but it does not work: no points mentioned  under cause relates to the computers here 
 
- the program isn't installed any more or has never been 
- no drive is encrypted 
- no drive is a substitute drive 
- and the System account has full access to the drive and all olders and all subfolders an files 
 
Furthermore I have just installed the latest version of MS powertoys as MSI with no problems. 
Also a normal EXE install was working. 
 
??????
		 
		
	
		
		
		
		
		
		
		
		
		
		
	
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