Do I need a defragmenter, disk cleaner, and an anti-virus for Ubuntu because my PC is slowing down?

Asked by Michael L. Winters on 2010-12-08

Do I need a disk defragmenter, disk cleaner, and an anti-virus for Ubutnu because my PC is going slower and if so where do I find them online sites?

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Please open a terminal from Applications→Accesosries→Terminal and type:


to investigate on which application are hungry of ram and processor resources...

You don't need of any defragmenter disk-cleaner or similar...

do i click anything after typing top?

arochester (arochester) said : #3

Only hit Enter/Return

is that all? does it take long because it's running down a long list of things

Journalized file systems don't get fragmented. Ext3 and Ext4 are journalized but Ext2 isn't and there is a defrag tool for that but thebenefit is minimal. Linux is too much of a hostile environment for viruses to work and your apps run as user onlywhich restricts their impact. You can install clamav and rkhunter to test your OS but I doubt much will be found.

Can you give the output of:

sudo apt-get -y install pastebinit; clear; top -n 1 | pastebinit


marcus aurelius (adbiz) said : #6

it doesn't matter that the output is long. the guys need to see what's going on in your system to solve your problem.

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