If i have no virus or spyware what eles can make my computer be slow?

Answer 1

too many programs up and running

how long has it been since you scan disked and defragged?

START
My Computer
right click – Local Disc (C:)
left click – Properties
choose 2nd tab – TOOLS
error Checking – click CHECK NOW
put check marks in both boxes
click – START (NOW- you will probably get a message saying you need to restart your computer – because this program wants to be the BOSS! – click YES)

also from here
Defragmentation – click Defrag Now
Click – Analyze – within seconds it will tell you if you need to - - if it says you are ok – FINE – if not – defrag – this will put
files back into closer proximity to make them work faster – when complete

restart your computer to make Scan Disk work

Best of Luck

Answer 2

you don't know for sure that your computer is free of viruses, spyware, root kits, trojans.

Though a fragmented hard disk or an almost full hard disk can slow things down a bit, the most common cause is malware. Malware has many ways of hiding so you won't see it under processes.

Do the normal maintenance (disk cleanup, browser cache cleanup, disk defragment) following by a full antivirus scan (be sure to download the latest updates), a malware/spyware scan (use free windows defender from microsoft if you don't have one, or look for a better one).

Also do windows update - see if you have the latest OS patches. Most monthly updates include the (basic) malware scan and removal tool.

How many other (legit) things do you have running? AOL takes up resources. Multiple media players take up resources. Over time new features in WIndows XP require more memory. 512 MB is OK but 1 GB is better.

Answer 3

The reason to cause computer run slow may be Corruption and Errors within your registry.The registry is a main part of your computer's Operating System. With time, as you use Windows and install and uninstall programs, your registry will get congested and full of errors. So your computer could slow down. So, if you can clean it up this problem can be solved.Sometimes you can speed computer up by 300%. To clean up registry,You can download a software called regsitry cleaner---Clean registry,remnant,corrupt files and temp files,history,cookies,etc.. This site:
http://fix-slow-computer.info
lists top 5 registry cleaner,you can download and scan for free.

Answer 4

you should perform a disc clean up every time you use your computer that will help the three other options are for you to perform a disc defragment from you programs, or go to internet properties and delete old files and such or get a newer computer or something like a cable modem good luck

Answer 5

virus and cleaners slow a pc down! as do alot of runnung programs in the back ground, use msconfig , in the run line . next look under startup, choose the ones you want to run others uncheck...

Answer 6

The hard disk might be full. Delete all temporary/unuseful files, use CCleaner http://www.ccleaner.com/download/ Keep the hard disk/partition where Windows is installed, to 50% free space.

Another idea: if your computer is pretty old, you might need to upgrade the RAM. http://www.crucial.com/

Answer 7

programs running in the background
your security/anti-virus (programs like mcafee take very high resources)
Windows OS (I have a computer with 128Mb RAM and running XP, it's laggy and slow)

Answer 8

Is your hard drive overloaded? Delete unnecessary files. Use disk defragment, disk cleanup. This might help.

Answer 9

a build up of the cache files, get a cleaner I recommend ccleaner it is free and can be downloaded at ccleaner.com

Answer 10

maybe u have many bulky softwares on pc..u can defrag ur hdisk,then,u can install system mechanics 7,which have tools to make ur pc work faster,like,clear temp folder,cache and all.