Does virus affects the speed of your internet connection?

Virus? yes but not quite as the wind! so I suggest that your connection should be wired.

yes, some virus would even block some ports that your pc normally use for internet browsing, some variants like strawbery, sality and other virus will hinder your port to do chats. and some registry entries that conflicts or have some issues on some software install might also affect your speed, that explains after a clean reformat internet speeds is at best because of a clean registry and a fresh Operating System as well.

yes the virus does affect the internet speed as well the system speed to process your job . Virus basically does an activity of recording and in your job assigned to the computer it tries to alter things and plays the program what it is defined for and hence the computer Mother board or the processor has to initiate process again and again as per defined the virus hence it takes a alot of time to respond and therein decreases the speed of response by which it decreases speed of all the things attached to it

There are malware which can slow down a computer system but it is not recommended to format the hard disk. There are other reasons why your Internet speed slows down after some time. They include (1) Too many add ons or plug ins. (2) A large amount of temporary Internet files including cache and cookies. (3) Some registry problem due to the installation of various software. (4) Too much disk fragmentation. Possible alternatives to formatting the HDD (1) Install a good Internet Security software. (2) Defrag your HDD. (3) Use software like CCleaner, Registry Booster, NalwareBytes, and SuperAntiSpyware. (4) Clear temporary Internet files, especially the cache. Initially they help to download faster certain web pages but when the total size gets too large they casn actually slow down the speed.

hi hisoka, yes virus affects the speed of your connection,if that's the reason,it should be removed because not only it will affect the speed but the whole computer itself,it will corrupt your whole system .And you mention that you reformat your hard drive every 3 months & when your windows are newly installed,it's very fast.during the duration of 3 months have you ever added new programs? downloaded new programs or installed any application? because the main thing that makes the computer very slow is the content of your computer.I have that experience before I worked as technical support for internet then I found out that I have lots of unused programs,when I deleted those,my speed has been okay until now.Try to check the capacity of your computer & try to see any unused or seldom used and try to delete them,It the reason is that then I assure you,the speed would be okay,and if the reason is different,try to check with the manufacturer of your computer & have them checked it.Hope this information helps.have a great day!