can't boot windows, csrss.exe corrupt and unreadable

[djyuno]

hi guys, im a newbie here, i have a question, my windows 7 recently has this problem upon boot where the computer automatically directed me to startup repair mode and the windows saying
Recenv.exe - corrupt file
"c:\windows\system32\csrss.exe corrupt and unreadable.."

i'd faced this problem before but im lazy to find the solution so i just format and clean install back win 7 my computer..but it happen again now and i cant afford to reformat it since i have important file in there..

i realised that this problem occur when i didn't open my computer for a long time like a week or more, i usually open my pc day and night and close it for a long time during vacation. please help me on this issue..thanks!

 

[GianniDPC]

If you have the windows 7 CD try start-up repair hope it helps

 

[djyuno]

when i boot my computer, it automatically went to the startup repair and the Recenv.exe error also pop up..i just click ok and then i let the startup repair run..it stated there that it will take almost an hour to complete but after waited for half a day it still repairing and nothing happen

 

[carwiz]

You might give this a shot.

Use the installation DVD to start Windows Recovery Environment.
Follow these steps EXACTLY:

1. Use the installation DVD to start the computer, and then run Windows 7 Setup.
2. When the Gather Information screen is displayed, press SHIFT+F10 to open a Command Prompt window.
3. Type the following commands to start Windows Recovery Environment. Press ENTER after each command. cd /d %systemdrive%\sources\recovery
   RecEnv.exe