Win7, WIN8 system Usb-blaster driver cannot be installed workaround

Win7, Win8 operating system installation Usb-blaster driver process There are two problems:

One, Windows cannot install Usb-blaster.

The hash value of the file is not in the specified directory file.

The above provides a complete solution to two questions, Win7, WIN8 system is similar to the resolution process, but the interface is not the same.

Issue One: Windows cannot install Usb-blaster

Workaround:

1, enter, computer-->> Device Manager.

2, find the device Usb-blaster, at this time with a yellow exclamation mark.

3. Right button, update driver software ....

4, to select "Browse the computer to find driver software (R)", such as the selection of automatic search is not successful installation, be sure to manually search.

Quartus II is installed after the driver with Usb-blaster, so you do not have to go online to download the Usb-blaster driver, just find the Usb-blaster folder in the Quartus II installation directory.

The path to my Usb-blaste folder is: C:\altera\11.0\quartus\drivers\usb-blaster. must not be a subfolder of usb-blaster (such as C:\altera\11.0\quartus\drivers\usb-blaster\x32 or C:\altera\11.0\quartus\drivers\ usb-blaster\x64), otherwise you will be prompted not to find the driver.

5. just follow the instructions to install the next job. .

Problem two: The hash value of the file is not in the specified directory file

Workaround:

1. Windows key +c, or the lower right corner of the mouse screen
2. Settings → more PC settings
3, left to select the general, the lower right corner immediately restart

The above steps are only suitable for WIN8 systems and can be replaced by this method (also suitable for Win7 systems):

Windows key +r→shutdown.exe/r/o/f/t 00→ OK

4, wait a few seconds will appear three options, select troubleshooting

5. Advanced options → startup settings → reboot

6, restart the time to come out safe Mode list → select "Disable Force driver"

7, re-update the driver, refer to the problem of a solution.

8 . The Windows Security Prompt window appears when the driver is updated, and select "Always install this driver software (I)".

9,OK, the driver installation is complete, the original yellow exclamation point disappears.

Win7, WIN8 system Usb-blaster driver cannot be installed workaround