E-mail messages that include file attachments would not display file names, when the file name contains double-byte character set (DBCS) characters and the file name is longer than 42 characters.However, this problem can only be noticed when the e-mail message format is Rich Text.

All applications that implements the IMallocSpy debugging interface may experience heap corruption. For example, you may be browsing the internet and would suddenly experience a halt in all your Network activity.Though you might see the Internet connected icon in the tray, you may not able to browse

You also receive error messages that state “Your PC has recovered from a serious problem” You encounter error messages about faulting netapi32.dll and svchost.exe

May be you have attacked by some Malware.

Restart your computer and go in safe mode.
 
Disable System Restore

Mycomputer --> Right click ---> Properties ---> System Resotre
Turn off System Restore in all drives..

Do a Full Scan and manually delete all viruses.

Restart the system.

Hi Soumya,

Are you seeing this error in the event logs [ application, system, .. ]?

Is there a pattern in the computers that are experiencing this issue [ in terms of OS, platform, or features installed]

Can you post the logs in this thread?

Did you run SEP support tool on the affected machines? [ if yes, what were the findings ]

Aniket