|  04-19-2017, 08:58 PM | #1 | 
| Junior Member  Posts: 6 Karma: 10 Join Date: Apr 2017 Device: Kindle Paperwhite | 
				
				Changed install drive letter; now can't update
			 
			
			So I changed the drive letter that calibre was installed on. Now it won't let me update or uninstall the app since the drive letter is no longer active. Anyone able to help me out here? | 
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|  04-19-2017, 10:23 PM | #2 | 
| Resident Curmudgeon            Posts: 80,727 Karma: 150249619 Join Date: Nov 2006 Location: Roslindale, Massachusetts Device: Kobo Libra 2, Kobo Aura H2O, PRS-650, PRS-T1, nook STR, PW3 | 
			
			You need to say what OS, what version OS, and exactly what you did and how you are trying to update before help can be had.
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|  04-19-2017, 10:25 PM | #3 | 
| Junior Member  Posts: 6 Karma: 10 Join Date: Apr 2017 Device: Kindle Paperwhite | 
			
			Windows 10 Pro, latest creators update.  I changed the drive letter that Calibre is installed on using the disk management utility from J to E. When I run the install msi it complains about there not being a J drive. | 
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|  04-19-2017, 10:27 PM | #4 | 
| Resident Curmudgeon            Posts: 80,727 Karma: 150249619 Join Date: Nov 2006 Location: Roslindale, Massachusetts Device: Kobo Libra 2, Kobo Aura H2O, PRS-650, PRS-T1, nook STR, PW3 | 
			
			Try uninstalling.
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|  04-19-2017, 10:28 PM | #5 | 
| Junior Member  Posts: 6 Karma: 10 Join Date: Apr 2017 Device: Kindle Paperwhite | 
			
			Add remove programs also complains about it not being on the J drive.
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|  04-20-2017, 12:07 PM | #6 | 
| Well trained by Cats            Posts: 31,249 Karma: 61360164 Join Date: Aug 2009 Location: The Central Coast of California Device: Kobo Libra2,Kobo Aura2v1, K4NT(Fixed: New Bat.), Galaxy Tab A | 
			
			I think you learned the hard way, that changing a drive path for installed programs is not a wonderful idea. A internet search, suggests CCleaner to get rid of the 'uninstall' Registry entry. Or you could try and fix the Registry yourself  Since you needed to asked here... Choose CCleaner   | 
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|  04-20-2017, 12:48 PM | #7 | 
| Resident Curmudgeon            Posts: 80,727 Karma: 150249619 Join Date: Nov 2006 Location: Roslindale, Massachusetts Device: Kobo Libra 2, Kobo Aura H2O, PRS-650, PRS-T1, nook STR, PW3 | 
			
			You can try network mapping J to drive C. That might work.
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|  04-20-2017, 01:51 PM | #8 | 
| Grand Sorcerer            Posts: 13,693 Karma: 79983758 Join Date: Nov 2007 Location: Toronto Device: Libra H2O, Libra Colour | 
			
			Change the letter back, uninstall calibre, recharge drive letter and reinstall calibre
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