Windows 7: win 7 64-bit very slow help

hi

i have have a Compaq cq5306uk

Intel(R) Core(TM)2 Quad CPU Q8300 @ 2.50GHz, 2499 Mhz, 4 Core(s), 4 Logical Processor(s)

it is on windows 7 home basic 64-bit 4gb of ram it has 5 users on each used weekly with docs and music the hdd is a 1tb hdd with 788 gb free so enough left cpu usage varies from 4%to 25% with chrome running

87 process are running and physical memory is at 84%



i haven't got any stupid mega hungry programs just c cleaner defraguler and Avg 2012 i have looked down most simple routs such as uninstalling prog etc and now im stuck start up is slow and log in is slow programs seem to take for ever to load and crash regally

please help

Get rid of defragler, get rid of avg.

Run windows disk defragmenter until windows is 0% fragmented.

Run system file checker.

SFC /SCANNOW Command - System File Checker

84% memory is high, find out what`s using it all up.

okay what antivirus do you recomend

cheers for the quick reply

and how do i see what the 84% is beeen used by

Microsoft Security Essentials and Malwarebytes, both free.

Any running process will use memory, whether it`s in the background or not, gadgets etc.

How many programs do you have running at startup ?

start>run type in msconfig go to startup tab