|"When i have open device manager there was error code of 28 on PCI modem i didn't understand what i have to do ..."|
The drivers for this device are not installed. (Code 28)"
OR - you can get that message FALSELY, intermittantly, if you have a modem card in a mboard slot on a desktop computer and it has a poor connection in it's slot.
Your dial-up modem would definately not work correctly while Windows is showing that error for it in Device Manager.
You haven't said whether you have a desktop or a laptop computer.
If you have a desktop computer, and you have a dial-up modem card in a mboard slot .....
Unplug the case/power supply, or switch off the AC power to it otherwise.
Open up the case by removing the left panel as seen when you're looking at the front of the case.
The dial-up modem card is the one the telephone cable plugs into. Unplug the telephone cable.
Remove the screw that holds down the card at it's end bracket. Remove the card from it's slot.
Wipe off the contacts on the bottom of the card with a tissue or a clean cloth. Don't touch the contacts with your fingers after that.
Install the card, but DO NOT install it in the last PCI slot closest to the center of the mboard - that slot is forced to share it's IRQ with the video, and only a PCI video card is likely to work properly all the time in that last slot.
Make sure the card is all the way down in it's slot.
Fasten the screw that holds down the card at it's end bracket.
Plug the telephone cable into the card.
While you're in there, if the cpu fan/heatsink has mung (dust, lint, etc.) on it, clean it off, but DO NOT use a vaccuum cleaner to do that (they produce a tremendous amount of static electricity when running, and anything connected to them can discharge that to your components) - use canned air, or an air nozzle if you have access to an air compressor, or an artist's brush that can be used in small spaces, etc. It may be difficult to clean the top of the heatsink under the cpu fan - the most likely place to have mung on it - and the bottom side of the cpu fan blades unless you remove the fan. If you have a case fan, clean that too if it needs it.
Also check for mung on the video card fan and heatsink if it has that, and the power supply's openings / fan.
Restore AC power to the computer.
Boot the computer.
Look in Device Manager.
If the problem was the card had a poor connection before, there should be no error for the dial-up modem.
"When i connect to internet using dial-up after some while i can't do anything i.e. pc hangs"
Did you try pressing the Alt-Ctrl-Del keys at the same time to pop up Task Manager ?
If that works, sometimes it's only IE that isn't responding.
Click on the Processes tab in Task Manager if it doesn't already go there, highlight iexplore.exe, click on End Process.
Start up IE again.
Which version of IE are you using? XP comes with IE 6.x by default. It can be updated to IE 6 SP2, or it may be auto updated by XP's Autoupdate to that, but I've found you sometimes have problems with IE 6 you don't have with IE 7 and IE 8.
I disagree with some of the things seawatch1 is suggesting.
"O4 - HKCU\..\Run: [ctfmon.exe] C:\WINDOWS\system32\ctfmon.exe
That's a standard Microsoft program - XP, maybe 2000.
It doesn't cause problems; it doesn't use much computer resources.
(If you disable it from running in the msconfig - Startup list, it will re-appear as enabled eventually - no point in trying to disable it there.)
It can be disabled, but I've never had to do that on any computer I've trouble shooted.
(remove the line for)
Office Genuine Advantage Validation Tool
Windows Genuine Advantage Validation Tool
They don't cause problems, as far as I've seen on many computers; they don't use much computer resources.
Using the features in HighJack This! to remove entries is NOT something an amatuer or a newbie should mess with.
You can disable may things that don't need to be running, without risking making mistakes removing lines using the features in HighJack This!, and you can enable them at any time again if disabling a line causes problems.
Using msconfig to disable Startup programs from running will disable many of the things seawatch1 lists , without any risk.
See Response 9 in this:
" most people have a lot of programs that have been added by software installations that load when Windows first loads as Startup programs that they DO NOT need to have running..."
Note - ctfmon.exe - it's harmless, doesn't use much resources. If you disable it from running in the msconfig - Startup list, it will re-appear as enabled eventually - no point in trying to disable it there.
Things I do see of concern in seawatch1's lines in Response 2......
- you have McAfee, Malwarebytes, and Avast! anti-malware programs installed. At least two of them have resident modules, if not all three.
Many anti-malware programs have at least one "resident" module (some have more than one, e.g. Norton/Symantec products) - a part of the software that runs all the time the computer is running - that scans the computer in the background automatically, at random times.
It is recommended that you DO NOT have two or more such programs that have resident modules that do that installed in Windows at the same time, because in many cases the resident modules clash with each other and cause problems. If you do have two or more such programs installedat the same time, then you should at least DISABLE the resident modules from running in all but one of the programs. You can still run full scans, no problem, or switch which one has it's resident module(s) enabled.
E.g. McAfee, AVG free and paid versions, Norton/Symantec products, Avast! free and paid versions, SpyBot free and paid versions, the Malwarebytes paid version, AdAware paid version all have resident modules. Microsoft's Windows Defender has a resident module but I've never seen it cause any problems regarding clashing with other anti-malware programs.
AdAware free version, Malwarebytes free version, some others, do not have a resident module. They don't cause clash problems, as far as I've seen.
If you have the paid version of Malwarebytes, an alternative is to un-install it and get the free version. The only difference is it doesn't have a resident module, it's only running when you choose to run it, and you have to choose to Update it before you run a scan whenever you run it.
"BitDefender Online Scanner"
Online anti-malware scanners generally do not clash with other anti-malware software's resident modules.
"O23 - Service: avast! Antivirus - ALWIL Software - E:\Avast5\AvastSvc.exe
O23 - Service: avast! Mail Scanner - ALWIL Software - E:\Avast5\AvastSvc.exe
O23 - Service: avast! Web Scanner - ALWIL Software - E:\Avast5\AvastSvc.exe"
If you want Avast! to be the one that has it's resident module(s) enabled, you don't stop those from running by removing the lines. You can disable those from running in the program's settings at any time, if you want to.