Old PC works like a new one

When you got a PC with just low end specs due to "tight" budget, please don't give up on that PC. Try to figure out what can be added pn to make it works like new.
There are some tips to get it done:

1. Regularly delete the temporary files that clutter up your disk. clean up some unused fonts as the PC may load them when start up. try Disk defragmenter every week.
2. Don't keep the internet history for more than 7 days. (by default it set to 20 days, if I am not mistaken)
3. Check the start up program that no longer usefull for yourself by typing "msconfig" at RUN to check and unclick it(better becareful and sure about the program that want to uncheck)
4. Invest some Disk Maintainance software for keep the PC healthy.
5. Or upgrade the RAM by DIV, or maybe faster graphic card, and even upgrade the processor that fit to your motherboard specifications.