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Laptop no longer getting past Start Up Boot
Hello, I had a problem where my windows 7 64 bit laptop hasn't gotten past the start up screen for well over 20 minutes. I've powered off my laptop and attempted a startup repair 3 times with no improvement. When the startup repair completed, the diagnosis showed that the only repair action that failed was System Files Integrity Check and Repair with the error code: 0x490. I've also attempted restore my system up to 3 days ago however the problem persists. Any further attempts at using the Startup Repair I get a message saying "Startup Repair cannot repair this computer automatically". It then provides the following problem signature:
Problem Signature:
Problem Event Name: StartupRepairOffline
Problem Signature 01: 6.1.7600.16385
Problem Signature 02: 6.1.7600.16385
Problem Signature 03: unknown
Problem Signature 04: 21200100
Problem Signature 05: Autofailover
Problem Signature 06: 4
Problem Signature 07: NoRootCause
OS Version: 6.1.7601.2.1.0.256.1
Locale ID: 1033
I've managed to successfully boot into Safe Mode with Networking and opened up the elevated command prompt and then ran system files checker SFC /scannow hoping it would fix any of my startup issues. However at the end of it I got a message saying, "Windows Resource Protection found corrupt files but was unable to fix some of them" and left the file sfcdetails.txt of what went wrong. The only error I noticed regarded a file called "ksuser.dll. Do I have to find a non-corrupted version of the file and replace it to fix my start up problems? Any help would be greatly appreciated and thanks!