Windows 7 Boot Error with MpFilter.sys corrupted

Thu, 11 Sep 2014 16:48:47 +0000

After doing patch-Tuesday update yesterday, my Windows 7 no longer booted. This is the second time it happened. Last time I fixed it, didn’t get to document and it took me a while to figure out how I did it.

This version of Windows is Windows 7 Professional 32-bit. After some digging, MpFilter.sys is Microsoft Malware Protection Minifilter, which is a part of Microsoft Security Essentials (MSE). MSE is installed on my Windows 7 machine.

Windows 7 64 bit on Toshiba Satellite A200

Sat, 08 Aug 2009 07:42:38 +0000

I just finished installing Windows 7 64-bit Ultimate edtion on my 1+ year old Toshiba laptop. The model is Satellite A200-*****.

The installation went smoothly, well almost. On the first boot, the graphic card driver, the finger print reader were automatically updated with Windows update. The only two devices which weren’t detected are: unknown device “ACPITOS6205” (bluetooth) and the Texas Instrument 5-in-1 card reader. The 64-bit driver for the bluetooth can be downloaded from: http://aps2.toshiba-tro.de/bluetooth/ thanks to this post at Toshiba Laptop forum.

Windows 7 on Kenno's Open Note

Windows 7 Boot Error with MpFilter.sys corrupted

Windows 7 64 bit on Toshiba Satellite A200