Your phonebook may have special characters. Export your contacts from the phone to the SIM card first, then sync to PC Suite. Also, ensure you have installed Microsoft Visual C++ 2008 Redistributable (the suite depends on it).
You can find the Smart Switch PC version on the official Samsung website. Look for the Windows version, download the .exe file, and follow the on-screen prompts. samsung pc suite download for windows 7
However, as Android evolved, so did Samsung’s software. Today, the term "Samsung PC Suite" can refer to three distinct pieces of software, depending on the age of your phone: Your phonebook may have special characters
If the official Samsung software feels too heavy or doesn't detect your phone, several third-party suites offer high compatibility with Windows 7: Downloading Smart Switch on my PC | Samsung Australia You can find the Smart Switch PC version