adding to slow runnig proble sometimes the boot stalls when the balck screen with the word windows as stated I have done the norma no virus , reg cleaned hard drive checked and defrag no hardware problem shows all driver updated running 64 with 6 ram no picturs on the main screen no screen savers running as perfomance not as appearance
Might be some corrupted or missing system files. Try running sfc /scannow in a cmd prompt window to verify and fix. Use the System File Checker tool to troubleshoot missing or corrupted system files on Windows Vista or on Windows 7
