Windows 7 - Windows Explorer (explorer.exe) is constantly crashing

hi,

after 5 or 6 months of using, explorer.exe started crashing constantly,
it crashes every 10-15 minutes and freezes the screen, then i restart the process and continue using.
here is the problem signature :

Problem Event Name: APPCRASH

Application Name: Explorer.EXE

Application Version: 6.1.7600.16768

Application Timestamp: 4d6878c3

Fault Module Name: StackHash_b19c

Fault Module Version: 6.1.7600.16695

Fault Module Timestamp: 4cc7ab44

Exception Code: c0000374

Exception Offset: 000c35e3

OS Version: 6.1.7600.2.0.0.256.1

Locale ID: 2057

Additional Information 1: b19c

Additional Information 2: b19c7c480fb8593e9c78e3a1cb083c61

Additional Information 3: d6a2

Additional Information 4: d6a2dd99d19d540846a6bb2478df8644

any help will be appretiated.

Hello there, welcome to Seven Forums.

Go command prompt (right click -> run as admin) & type: sfc /scannow

Itwill find and try to fix any bad system files.
Also download and install malwarebytes & do a full scan, just to rule out malware.

You can also create a memory dump that way, the next time Explorer crashes, a dump will be generated; you can then upload the dump over here, have it checked by a dump techie and pinpoint what is causing the crash (step 5 of the link below - recommended to me by usasma for my own Explorer issue...still have to get round to it, though ;-) ):
Troubleshooting Explorer.exe Crashing Issues