Why did my computer suddenly get slow?

Question

It's usually pretty fast but all of a sudden it completely slowed down. I did a scan with Windows Defender and it came up clean. I also usually use symantec antivirus, but it's coming up so slow that I can't even use it to scan.

Answer 1

You probably already have used all youre memory in youre hard drive.

theres no room for virtual memory.

Try using disk clean up and defragment. That should give a little bit more memory. plus if have less icons on the desktop the better, and go classic windows theme, and when you shut down dont. Hibernate. So when you boot up again you will go directly to the memory that you last were using instead of booting up new settings everytime you turn on the pc.

Answer 2

Try doing a "clean-up" to get rid of temporary files, these can slow things down quite a bit.

Answer 3

Using a registry cleaner can clean up your computer and then make your computer faster,Why?the reason is that there may be some regsitry errors and remnant,corrupt files and temp files in your computer to cause "computer slow".

Everytime you install and uninstall software on your computer and surfing online you create junk in the computer registry.over time, the registry can grow to enormous proportions, especially if the various programs you've installed do not do a good job of deleting and/or updating it's Registry entries.You need to scan and clean your computer with registry cleaner to make it fast.Good Regisry Cleaner will improve your computer and Internet performance dramatically!

There are some comparison and review of TOP 5 registry cleaners.

http://www.speed-up-your-pc.com/

You can download and scan your computer for free.

Answer 4

there a are a few things that cause computers to run slow. it could be your hardware. slow processor, little ram, etc. sometimes it is software related. registry errors, disk fragmentation, viruses and other computer malware cause problems. there are a few things you can do to help regain speed with windows 98 and up.

All the following are FREE

Run Disk Cleanup - Start>All Programs>Accessories>System Tools>Disk Cleanup

Run Disk Defragmenter - Start>All Programs>Accessories>System Tools>Disk Deframenter

Remove Programs from Startup - Start>Run>msconfig

--Click on the Startup tab and uncheck the boxes of programs unnecessary to run at startup

Install and Run ONE Antivirus Program

--AVG Anti-Virus Free Edition http://www.grisoft.com/

*--Avast Anti-Virus Home Edition http://www.avast.com/

--Avira Anti-Virus http://www.free-av.com/

Install and Run Anti-Spyware

*--Spybot Search and Destroy http://www.safer-networking.org/

*--Spyware Terminator http://www.spywareterminator.com/

--AdAware http://www.lavasoft.com/

Install and Run System Optimization tool

*--Ccleaner (Strongly Recommended) http://www.ccleaner.com/

*--Advanced WindowsCare http://www.iobit.com/

--Glary Utilities http://www.glaryutilities.com/

*--Auslogics Registry Defrag http://www.auslogics.com/en/software/reg...

To Maintain Your Systems Safety a Firewall is Recommended

*--Comodo http://www.personalfirewall.comodo.com/

--Zonealarm http://www.zonealarm.com/

* = Favorites

Answer 5

http://www.computing.net/answers/windows...

http://www.computing.net/answers/windows...

Answer 6

cookie... it has collected to many cookies

Answer 7

first verify that system is showing same amount of ram that you have installed

second start task manager and see which application is using much resources (memory and cpu column)

third type "msconfig" in run box and remove check on every thing in it except the thing that you know are essential

Answer 8

For running slow there are many causes:

Microsoft Registry Problems = Slow Computer!

Spyware/Adware

RAM

De-Fragmenting

Etc.

Below can help you speed up your pc:

For  IE, click Tools, Internet Options  delete files (offline files) clear history (set days to save to 0 if you want) click o.k., and Restart

For Firfox, press ctrl+shift+del, and click clean private data.

Manage your startup:

Open your Start menu  ->  Click Run ->  In the command screen type "msconfig.exe" ->  In the "system configuration utility", click either "service" or "startup" tab ->  Uncheck all programs that your are no longer using.

De-Fragmenting

1. Right click of C Disk.

2. Click properties.

3. Click tools tab.

4. Click "Defragment now".

5. Click Defragment.

You can search which process full use you cpu, and end the process.

Under steps:

1. right click on the TaskBar.

2. click the Task Manager.

3. click the processes tab.

4. double click the CPU.

5. find if the "System Idle Process" is max.

6. if not right click and click end process.

Learn  "Why Is My Computer Running so Slow?" and "How to Speed it UP":

http://downloadlk.com/WhyIsMyComputerSlo...

Use the tool: http://downloadlk.com/themosteffectivere...

Answer 9

to speed up my computer i like adding/removing programs, running an adaware scan, editing the startup menu programs to shorten the list of c**p the computer has to load, doing a disk cleanup under accessories on start menu, and running spy doctor scans