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Question by Cleavon Lampe: My computer says at startup it can’t find csrss.exe and it’s causing network problems and can’t launch WoW.?
Hi there,

So here’s the story. Two days ago my AVG popped up a warning on some files running. So I went to check what they were and they were the following 3 things:

dwm.exe , conhost.exe , csrss.exe.

I do know that dwm.exe and csrss.exe are processes u should always have running but I opened my Windows Taskmanager and quickly noticed 3 more processes that are running that I’ve never seen: dwm.exe conhost.exe csrss.exe. Once again, I am aware that dwm and csrss are processes that should be running but the thing is, it was running two of them at a time. And the two which were new had a lower memory usage than the original ones and also had no description and conhost.exe was new to me and I’ve never seen it before. So I went to delete the conhost file and dwm file but then my internet browser (Firefox) said there wouldn’t be any connection to a proxyserver or something. So I went to settings and put No proxyserver and it worked. But then WoW gave the following error when I tried to launch: Launcher cannot obtain patching information. Please check your internet configuration. Then when I went to firefox settings and enabled the Manual proxyserver again, WoW did launch for me again because I didn’t close (to me the fake csrss.exe) and I think that process got the other two automatically running again. WoW worked again by then. So then I decided to delete the dwm.exe seen as a threat by AVG and conhost.exe.

So I tried to restart my PC. And again, the same processes were running. I just used my PC how it was for a while and noticed when I was googling alot of links didn’t work and got me to this other website (like Bing but then just another one of those kind of websites). Oh btw, I didn’t mention that I did not delete the csrss.exe (the one that was seen as a threat by AVG). So this time I decided to delete that one aswell and also the other 2 that somehow came back alive after I deleted them (dwm.exe and conhost.exe) Afterwards I chose to use No proxy on Firefox because i couldn’t get any connection without the processes if u chose to use a proxyserver or something.

I restarted my PC and this time I got an error as soon as I got into Windows. It said it couldn’t find csrss.exe. I just clicked okay as I wasn’t too sure about anything atm. I checked Task Manager again and this time the processes weren’t running (only the original ones which I always had). Everything worked fine. I still couldn’t browse my internet without having No proxy enabled though. So I tried to launch WoW hoping it was all fixed and taskmanager was running all the processes it normally does but then again I got the following error: Launcher cannot obtain patching information. I tried to use Repair but that also says it can’t connect to blizzard servers. I’m thinking it has to do with proxyservers but I don’t know anything about them.

So basically. Now I can’t play WoW because of some new random processes that somehow started running and AVG saw them as a threat and now I deleted them. And I can’t restart my pc again because now it won’t run the processes that (I think) made me able to have something with the proxy or whatever it is so I could run WoW.

I just hope to get helped asap!

PS: I also put this on the World of Warcraft technical support forum but I can’t seem to get anyone to help me.

Best answer:

Answer by Afia Aldridge
Solution1

Generally speaking, there should be only one version of Csrss.exe on your computer at a time. If you receive computer errors and notice that your computer is running extremely slow, you should check out if there are many versions of this file running on your system. To do this, please open your Security Task Manager as follows:

1. Press “Crtrl+Alt+Delete” to open the Task Manager window;

2. Under the tab “Process”, take a look on the processes tab at the list of processes.

The size of legitimate file should be less than 1MB. If there is more than one entry for CSRSS.exe, your computer is probably infected with spyware, virus, worm, or Trojan. You need to scan your computer with anti-virus programs or spyware scanner to resolve this problem as soon as possible.

Solution 2

Process Csrss.exe is located in the system directory: C:\windows\system32. If you fail to locate it in that folder, you can actually take it from the Windows installation CD. Here are steps:

1. Put the Windows installation CD in your CD drive

2. Go to Start > Run

3. Type “expand cd Drive:\i386\Csrss.ex_c:\windows\system32\Csrss.exe” in the open box (cd drive should be the entry of your CD drive)

4. Then press Enter and reboot your system

However, as you can see, the above methods would waste your precious time and the whole operational process needs some degree of computer technology. Obvious, it is inapplicable to computer novice.

Solution 3

A registry cleaner helps in identifying errors associated to csrss. It will scan the whole system for any invalid, obsolete, and corrupted entries. Apart from repairing the csrss.exe error, one should always run a scan and clean the Windows registry regularly as it contains loads of data slowing your computer’s applications down. Basically, this registry is a database which stores all the information required for the computer to run. Whenever a file is created, a record is logged in the registry. Over time, these entries are building up that is why it is important to always run a registry cleaner to delete those useless entries.

It is not recommended to do a manual scan to check for csrss exe related errors. The file itself is a crucial Windows file that must be running at all times. Terminating or disabling it will hinder the computer’s stability and security. You will only need a registry cleaner to automatically check for file errors and shut off those unnecessary programs that are just slowing the system. Only then can you can truly optimize the performance of your PC.

Know better? Leave your own answer in the comments!