The answer is rather yes then no. Any additional software slows down your system when it runs simultaneously with other processes. Transformation packs change some of system files which very optimized by Microsoft for performance and have been changed third party. But the main problem is transformation packs some .exe files which enable such features as Aero, and that takes a lot of resources especially if such applications are not optimized.
Xbox live takes up a small amount of internet usage, but it has no effect with the computer, especially if the modem/router you are using has no Ethernet cable running to your computer.
To get the Windows 98 shutdown noise that resembles a giggle, you can search for the sound file online, as it is often available for download. Look for "Windows 98 shutdown sound" on sound effect websites or forums. Once you have the file, you can set it as a custom sound on your computer or use it in multimedia projects. If you want to experience it on an actual Windows 98 system, you may need to find an emulator or an old computer running that operating system.
pollution
If you are using Windows Live Movie Maker there is no Slow Down effect available.Only Windows Movie Maker v2.6 has this effect. I suggest downloading Windows Movie Maker v2.6 if you want to access the 'Slow down, Half' effect.(NOTE: You can have both the versions on your computer)Windows Movie Maker v2.6 for Vista/Windows 7:http://www.microsoft.com/downloads/details.aspx?FamilyID=D6BA5972-328E-4DF7-8F9D-068FC0F80CFC&displaylang=en
No, but you have to be really careful when you are working with partions.
Dilation
the effect of having a virus on your computer depends on which virus you have. some view your personal data like credit cards and stuff. some destroy your computer so it wouldn't work anymore and you would have to reinstall windows and all your data could be lost.
The correlation remains the same.
If you keep your computer ON for 1 Year then the computer doesn't have any effect until you are maintaining the Heat of the CPU and control proper CPU utilization i suggest you to don't used Windows on that pc instate use any linux distribution.
yes it does effect how well the computer works
nitrogen has no effect to life
Each antivirus uses up about 5% of your ram when it is not running. if you install more than one anti virus your computer will become extremely slow