Redirection is enabled for 64-bit Windows Edition by default. After you upgrade, roll back, uninstall, and install the PV Driver, you do not delete the key value (of an icon) in redirection in the registry. Therefore, two upgrade icons are displayed. To resolve this problem, perform the following steps:
Step 1 In the Task Manager dialog box, locate two processes named HwUVPUpgrade.exe.
Step 2 End either of them.