Clean Up Unwanted Files

    Get a good program like CCleaner, which can remove temporary system files and internet cache files. This can potentially free up a lot of space on your hard drive. CCleaner can be found here. Beware of bogus programs, and stay away from those which need you to pay.

    Defragment Your Hard Drive

    Defragmenting your hard drive moves all the files into the front of the drive, so when you need to access something on it, or save something, it will be faster. You won't see changes in the location of your files and folders, only differences in speed. Windows Defragmenter can do the job, but there are some free ones which you may want to look for. Defraggler is a trusted free defragmenter, and can be found here. Once again, beware of fake programs which may be viruses.

    Make Sure You have Antivirus Protection

    A lot of reasons for a slow computer are caused by viruses and malware. Be sure you have a reputable antivirus, which does not slow your computer down. Many free ones can do the job just as well, and even better, than paid antivirus programs. A great free antivirus is avast! which can be found here. Make sure you only have one antivirus, as many could conflict with each other, and slow down your computer. Like every other program, beware of viruses and fake antivirus programs.

    Firewall

    A firewall is optional, but not necessary, as most antivirus programs come with some form of firewall.

    Antimalware and Antispyware

    Malware and spyware sometimes can't be found by your normal antivirus. There are some programs which can find these and should be run around once every month. They serve as scanning programs, and shouldn't be used as antivirus or firewalls. Some recommended antimalware and antispyware programs are Malwarebytes AntiMalwareSuper Antispyware. Be aware of fakes which can pop up often. and

    Safe Surfing

    It is good to practise safe internet surfing, which includes not visiting websites which you do not know of. There is a good addon for the Firefox browser which has ratings on almost every site on the internet. It is called Web of Trust and can help you decide whether to visit certain websites or not.

    Registry Cleaners

    Stay away from all kinds of this. They usually cause more problems than they solve, so avoid using registry cleaners at all costs.

    These should be practised often, and it would speed up your computer and keep it free of malware and spyware. This will ensure your personal files are safe.

    清理不需要的文件夾

    弄個好點的程序，如CCleaner,它能夠清除臨時系統文件和互聯網快取檔案。這樣做將能夠釋放你硬盤上很多潛在的空間。CCleaner 可以在這里找到。小心假冒的程序，并且遠離那些需要你付費的程序。

    清除你硬盤的碎片

    硬盤碎片清理將會使所有的文件移動至硬盤的前端，所以當你需要存取其上的任何文件時，這將會變得更快。你不會看到你的文件和文件夾位置的變化，只會看到速度的變化。Windows Defragmenter可以完成這項工作，但是還有一些免費的軟件，你可能想看看。Defraggler是一個值得信賴的免費的碎片清理程序，可以在這里找到。再次提醒，小心那些有可能帶有病毒的假軟件

    確保你有殺毒軟件的保護

    使電腦速度變慢的很多原因是由于病毒和惡意軟件所引起的。要確信你有一個信譽好的殺毒軟件，其將不會減慢你電腦的速度。也有很多免費的軟件可以做這項工作，而且甚至比那些付費的殺毒程序更好。有很多免費的殺毒軟件！其可以在此處找到。確保你只有一個殺毒軟件，因為許多殺毒軟件之間會相互沖突，并減慢你電腦的速度。向其他程序一樣，小心病毒和假冒的殺毒程序。

    防火墻

    防火墻是可選擇的，但不是必要的，因為大部分的殺毒軟件都帶有某種形式的防火墻。

    防惡意程序軟件和防間諜軟件

    惡意程序和間諜軟件有時不能被你的普通殺毒軟件找出。有一些程序可以找到這些惡意程序和間諜軟件，并且應該至少每月運行一次。這些程序擔當掃描程序的任務，而不應該被當做殺毒軟件或防火墻來被使用。推薦一些防惡意程序軟件和防間諜軟件Malwarebytes, AntiMalwareSuper和Antispyware.注意會經常突然出現的假軟件。同時，

    安全瀏覽

    實行安全瀏覽時有好處的，這包括不訪問你沒聽說過的網頁。Firefox瀏覽器有個很好的功能，其幾乎給所有的互聯網中的網頁評了級。它被稱作信任網，其可以幫助你決定是否訪問某些網頁。

    注冊表清理軟件

    遠離一切此類的軟件。這些軟件，與他們解決的問題相比，通常產生更多的問題。所以，無論如何都要避免使用此類注冊表清理軟件。

    這些建議應該經常被實施，這將提升你電腦的速度，并且使其擺脫惡意程序和間諜軟件。這將確保你私人文件的安全。