I have a sony vaio the computer is out of date I just received the power cord and turned it on but I am concerned about overloading the system with updates and making it completely useless. The current operating system is Windows XP model number PCG-7A2L VGN-FS640/W Is is possible to upgrade to Windows 8 or 8.1 without causing more problems? I have WiFi internet and wanted to wait until I can get some guidance knowing how quickly it can turn into total ****** very quickly. Thia computer seems to be in good shape other then the outdated XP so if I should just use it as it is I can make adjustments as I really do not care for Windows 10 at all it seems as we move ahead we lose more and more control over our computers. Any help or input would be greatly appreciated.