Help BSOD

[xanh14]

I had a blue screen and then this happened to me ...
"Windows failed to start. A recent hardware or Software change might be the cause...
... File: CI.dll Status: 0x0000428 Info: Windows cannot verify the digital signature of this file

i'm not able to get into windows , i tried all the modes and i can only start my laptop with the last configuration (Disable Digital Signature or something)

I'm not very experienced with computer problems like this and have tried to search internet for similar issues without getting any help from that

I have Window 7 64bit
OS:Window 7 Home Premium
It was pre-installed

 

[xanh14]

This is the ZIP file

 

[usasma]

There are no memory dump files in the uploaded reports. Please do the following:

Upload Dump Files:
Please go to C:\Windows\Minidump and zip up the contents of the folder. Then upload/attach the .zip file with your next post.
Left click on the first minidump file.
Hold down the "Shift" key and left click on the last minidump file.
Right click on the blue highlighted area and select "Send to"
Select "Compressed (zipped) folder" and note where the folder is saved.
Upload that .zip file with your next post.

If you have issues with "Access Denied" errors, try copying the files to your desktop and zipping them up from there. If it still won't let you zip them up, post back for further advice.

If you don't have anything in that folder, please check in C:\Windows for a file named MEMORY.DMP. If you find it, zip it up and upload it to a free file hosting service . I recommend Windows Live SkyDrive - http://skydrive.live.com or another free, file-hosting service. Then post the link to it in your topic so that we can download it.

Then, follow the directions here to set your system for Minidumps (much smaller than the MEMORY.DMP file): Set MiniDump

Meanwhile we will need the exact error message that you get. The number of 0's is also important (for example, the status message that you cited is most likely a

0xC0000428) But without the exact message we cannot be sure
​

Please do the following while waiting for another BSOD. I suspect that this could be malware related, so the malware scans are particularly important:

I suggest starting all troubleshooting with the following diagnostic tests. They'll save you a lot of time and heartache if there is a hardware failure, and you'll have the disks on hand in case you need them in the future:

H/W Diagnostics:
Please start by running these bootable hardware diagnostics:
Memory Diagnostics (read the details at the link)
HD Diagnostic (read the details at the link) - Test ALL of the hard drives.

Also, please run one of these free, independent online malware scans to ensure that your current protection hasn't been compromised: Free Online AntiMalware Resources (read the details at the link)
There are also free, bootable antivirus disks at this link: Free Online AntiMalware Resources - Bootable Disks

 

[xanh14]

There is nothing in my MiniDump folder and i cant find MEMORY.DMP file ....

The message says:
Windows can not verify the digital signature for this file.