GW Instek GLA-1000 Series Quick start guide - Manual (Page 14)

4. Enter your user name and organization. Set the
range of user access: All users or the user currently
logged in.
5. Select the setup type:
Complete setup: All features will be installed. The
program directory is automatically set.
Custom setup: Installed features and program
directory are set by the user.
6. Reboot the PC when the installation has
completed.
Note
By default the driver is installed together
with the main program. In case the PC
requires a separate software driver
installation, select USB_LA.inf file in the
software package.