Metoda 1)
Most programs written for Windows Vista / 7 also work in this version of Windows, but some older programs might run poorly or not at all. If a program written for an earlier version of Windows doesn't run correctly, you can try changing the compatibility settings for the program, either manually or by using the Program Compatibility troubleshooter.
Watch this video to learn how to make older programs run in this version of Windows (1:26)
If changing the settings doesn't fix the problem, go to the program manufacturer's website to see if there is an update for the program.
WarningDo not use the Program Compatibility troubleshooter on older antivirus programs, disk utilities, or other system programs because it might cause data loss or create a security risk.
To run the Program Compatibility troubleshooter Open the Program Compatibility troubleshooter by clicking the Start button , and then clicking Control Panel. In the search box, type troubleshooter, and then click Troubleshooting. Under Programs, click Run programs made for previous versions of Windows.
Follow the instructions in the troubleshooter.
If you cannot install a program, insert the installation disc for the program and, using the troubleshooter, browse to the program's setup file, usually called Setup.exe, Install.exe, or something similar. The troubleshooter is not designed to work on programs that have an .msi file name extension.
TipYou can also open the Program Compatibility troubleshooter by right-clicking a program's icon or shortcut and then clicking Troubleshoot compatibility. :)
Metoda 2)
Cred ca ai windows-ul pe 64 biti sau instalerul de la Watch Dogs a fost facut pentru systeme pe 64 biti.Dezinstaleza Watch Dogs si cand il reinstalezi dai clik drepta pe instaler, properties, compatibilty si bifezi run this program si selectezi windows xp(sp2)apply si ok.Alta posibiliate ar fi sa dai clik dreapta pe instaler si sa alegi troubleshoot compatibility si sa astepti pana iti gaseste o solutie pentru a rula Watch Dogs-ul ! Bafta