Hi Mousaa,

Critical_Process_Died, is generally caused when a critical component of windows detects that is data has been modified when it should not have been.
It assumes that something bad modified the data and shuts down.
It could be errors reading a the driver from the hard drive, or a error in memory, or another driver is writing to memory that does not belong to it.

Follow the below steps to solve this problem:

1. Run the System File Checker tool

• Type Command Prompt on the Start Screen.
• Right click on Command Prompt to select "Run as Administrator".
• Type: sfc/scannow.

This will look at your core windows files and check for corruption, it will repair the files if it can (from a local backup copy)

If it finds files that it can not repair, that means both copies have been modified.

1. You then need to run the command: dism.exe /online /cleanup-image /restorehealth

This command will get a good copy from the Microsoft update server. It will also remove certain license validation hacks.

2. Update the drivers

If you recently installed a new hardware device and/or device driver, follow these steps to open Device Manager and install the drivers manually for all your new hardware:

1. Click Start
2. Type devmgmt.msc in the search box and click on devmgmt or Device Manager from the search results list
3. Right-click on the drive driver
4. Click Update

Following these steps will update the device driver manually if you have latest compatible version from the device manufacturer.

I hope this resolves your issue.

Regards,
Lokesh

Hi Moussa, What I have seen AVIRA has caused such problems in the past. Here are some recent references: - Http://www.zdnet.com/blog/security/avira-antivirus-update-cripples-millions-of-windows-pcs/12129 - Http://www.eightforums.com/bsod-crashes-debugging/7475-my-windows-8-crashes-alot-log-file-too.html - Https://forum.avira.com/wbb/index.php?page=Thread&threadID=131784 Therefore strongly recommended that you restart your computer in Windows Safe Mode and (remove) AVIRA completely uninstall via the control panel. Removal instructions: http://www.avira.com/de/support-for-home-knowledgebase-detail/kbid/88 After the removal is complete, you will be able to start your computer normally. We encourage you to consider better alternatives such as AVAST Free and Malware Bytes Anti-Malware on your computer. Good luck, James

Uninstall Avira and install another anti-virus application such as Avast or AVG. Contact to have also Avira who know the problem.