Hello, =20 I imagine well the driver can not be signed by Microsoft. But it changes = nothing : it doesn't want to be installed. Thus my problem must be elsewh= ere. Can it come from the program? Because I've noted that each time I st= arted again the PC the device functioned correctly ... until I resetted t= he PICDEM board. =20 regards, PiR =20 =20 -----Original Message----- From: Chen Xiao Fan Date: Wed, 3 Aug 2005 16:28:07 +0800=20 Even the driver is not digitally signed (by Microsoft), it should=20 still be able to be installed. A lot of the drivers are not digitally signed by Microsoft and do not have the Designed for=20 Microsoft Windows XP logo. Nevertheless they can still be used. In this case you should not be alarmed by the Microsoft warning and have to trust Microchip and proceed with the software=20 installation. By the way, there may be problems as well if you are not the administrator of the PC. Regards, Xiaofan=20 ---------------------------------------------- Xiaofan Chen R&D Engineer, Photoelectric Sensor Development Pepperl+Fuchs Singapore http://www.pepperl-fuchs.com Signals for the world of automation -------------------------------------------- -----Original Message----- From: Pierre B=20 Sent: Wednesday, August 03, 2005 4:07 PM Hello, I bought the PICDEM FS USB board and I want to re-program my=20 PIC18f4550. So I set up my PICDEM FS USB Board without problem and I could use the=20 demo mode. But as I wanted to use the bootload mode I resetted the=20 board (as necessary) and got the error (device not recognized and=20 not configured any more). ????=20 I identified the problem as I tried to reinstall the device : the=20 PC said me that the driver was not signed numerically. And "The=20 device can't start (code 10)" =20 Is it the real problem ? Does it miss a licence for the=20 compatibility with the Windows logo?=20 =20 Thanks for help. PiR=20 ------------------------------ =20 ------------------------------=20 =09 --------------------------------- Appel audio GRATUIT partout dans le monde avec le nouveau Yahoo! Messeng= er T=E9l=E9chargez le ici ! =20 --=20 http://www.piclist.com PIC/SX FAQ & list archive View/change your membership options at http://mailman.mit.edu/mailman/listinfo/piclist