Thanks for your answers.
Then I will have to try Sp1 updates again in the next year, though if I can buy a new computer with Win10 it would be better, some of it's main hardware components are about 12 years old.
As far as I can remember, on my first try, Windows had said the update has been successful, though under the System panel it was still looking as Windows 7 Home Premium, no Sp1.I had tried again, that time it didn't say it was succesful and it wasn't. I had tried some solutions which came to my mind and also found and tried some solutions from internet too,but they didn't work,update quit with an error .