Vaio stuck on loading screen after upgrading to Windows 10

My Sony Vaio laptop model : VPCCA16FB with originally using Windows 7 operating system, then now I already upgraded it to Windows 10.

All drivers are already installed for each device, everything is OK with this Windows 10 OS. The only problem is:  when I switch the laptop on or restarting it, after vaio logo appears then it stuck with blank screen and it takes about 2 minutes. After that, then it continues to loading Windows.

After I googling about the problem, I am not only the one, other people also have the similar problem with their laptops.
Now the problem is solved. If you have the same or similar problem, maybe this below step will help you too.

1. Make sure all devices already have the right driver.

2. Open Registry Editor (Press Windows+R  then write regedit then hit Enter or click OK).

3. After Registry Editor appears, then find  key/dword EnableUlps , by right click at HKEY_LOCAL_MACHINE, then choose Find.. 

use key word:  EnableUlps then click Find

It will take a while for searching..

4. After you see dword EnableUlps, double click on it

5. Change the value from 1 to 0

6. Press F3 for find next EnableUpls.

7. Repeat step 4 and step 5.

8. Press F3 Again until there is no result.