kdcom.dll is corrupt after 2/14 update

I'm running Windows 7 professional. After the automatic update that was installed on 2/14, I started to bluescreen, particularly when waking up from hibernation. The crash report indicates that kdcom.dll is corrupt.I tried some system-restores which failed, so I formatted my C: drive and did a fresh install of Windows 7. Everything was fine until 133 updates were installed, then the same crashes started again. I plan and re-reinstalling windows 7 and turning off automatic

updates as there seems to be an issue with the latest one. My computer is home-built, I7 990extreme chip, Asus MB, and a Nvidia GTX560 GPU.The crash/recovery report contained this:Problem signature:

Problem Event Name: BlueScreen

OS Version: 6.1.7600.2.0.0.256.48

Locale ID: 1033

Additional information about the problem:

BCCode: a

BCP1: 00000001000000DC

BCP2: 0000000000000002

BCP3: 0000000000000001

BCP4: FFFFF80002EA2265

OS Version: 6_1_7600

Service Pack: 0_0

Product: 256_1

Startup Repair diagnosis and repair log---------------------------Last successful boot time: ?2/?21/?2013 11:52:50 AM (GMT)Number of repair attempts: 1Session details---------------------------System Disk = DeviceHarddisk0Windows directory = C:WindowsAutoChk Run = 0Number of root causes = 1Test Performed: ---------------------------Name: Check for updatesResult: Completed successfully. Error code = 0x0Time taken = 0 msTest Performed: ---------------------------Name: System disk testResult: Completed successfully. Error code = 0x0Time taken = 15 msTest Performed: ---------------------------Name: Disk failure diagnosisResult: Completed successfully. Error code = 0x0Time taken = 110 msTest Performed: ---------------------------Name: Disk metadata testResult: Completed successfully. Error code = 0x0Time taken = 15 msTest Performed: ---------------------------Name: Target OS testResult: Completed successfully. Error code = 0x0Time taken = 141 msTest Performed: ---------------------------Name: Volume content checkResult: Completed successfully. Error code = 0x0Time taken = 140 msTest Performed: ---------------------------Name: Boot manager diagnosisResult: Completed successfully. Error code = 0x0Time taken = 0 msTest Performed: ---------------------------Name: System boot log diagnosisResult: Completed successfully. Error code = 0x0Time taken = 0 msTest Performed: ---------------------------Name: Event log diagnosisResult: Completed successfully. Error code = 0x0Time taken = 499 msTest Performed: ---------------------------Name: Internal state checkResult: Completed successfully. Error code = 0x0Time taken = 16 msTest Performed: ---------------------------Name: Boot status testResult: Completed successfully. Error code = 0x0Time taken = 15 msTest Performed: ---------------------------Name: Setup state checkResult: Completed successfully. Error code = 0x0Time taken = 344 msTest Performed: ---------------------------Name: Registry hives testResult: Completed successfully. Error code = 0x0Time taken = 2028 msTest Performed: ---------------------------Name: Windows boot log diagnosisResult: Completed successfully. Error code = 0x0Time taken = 15 msRoot cause found: ---------------------------Boot critical file c:windowssystem32kdcom.dll is corrupt.Repair action: File repairResult: Failed. Error code = 0x490Time taken = 3651 msRepair action: System RestoreResult: Failed. Error code = 0x1fTime taken = 270272 msRepair action: System files integrity check and repairResult: Failed. Error code = 0x3Time taken = 0 ms------------------------------------------------------

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