hafiztanzil
Try one of these ways:
1. Choose another path to install. Differ from C:\Program Files(x86)
2. Install SVP3 usual way. Is it has the same permission denied problem when choose C:\Program Files(x86) folder?
3. Run installer as administrator (as said Blackfyre) can help in both cases: SVP3 and SVP4
I just had to install it using administrator rights just as Blackfyre said. Thanks for the suggestion & it's running smooth