Just rename the installer from vopt.exe to vopt-setup.exe
The installer is checking if an older version is running but it finds itself.
A rather good defragmentor, small and unlike O&O does not install a background service
for those who have problem with installation….(vopt.exe must be closed blah blah)
just rename install file (vopt.exe) into other names (like vopt_install.exe)
************ This Worked Perfectly !!!
ps:Do not Forget The Other Directions