Everytime i start up my computer it goes straight to this screen that says:A recent hardware or software change might hav einstalled a file that is signed incorrectly or damaged, or that might be malicious software from an unknown source.If you have a Windows installation disc, insert the disc and restart your computer. Click "Repair your computer," and then choose a recovery tool.Otherwise, to start windows so you can investigate further, press the ENTER key to display the boot menu, press f8 for Advanced Boot Options, and select Last Known Good. If you understand why the digital signature cannot be verified and want to start windows without this file, temporarily dusavke driver signature enforcement.Status: 0xc0000428Info: Windows cannot verify the digital signature for this file Then when i try to reload vista it does the same thing and when i try to load xp it says:Line 17618 of the INF file \i386\txtsetup.sif is invalidSetup cannot continue. Press any key to exit.Then it goes to the screen i sent earlier.All i can do it boot from a cd or open this other menu up which i don't know what it is.

Hi magik, check this link: http://www.tek-tips.com/viewthread.cfm?qid=896927&page=1 Hope it`s helpful...

Hi, Windows Vista already indicates its a signature error. We need find out the file and rename it to resolve the issue. Given the situation, please collect the File Signature Verification log in Windows Vista for me. How to collect the File Signature Verification log===============================1. Click "Start" button, type "sigverif" (without quotation marks) in the Start Search Bar and press Enter.2. Click the "Start" button to make a check.3. After checking, please click Close and Advanced button.4. Click View Log button and then a log file will be displayed.5. Click File and save as a "SIGVERIF.TXT" file on the desktop. 6. Please upload the file to the following link: https://sftus.one.microsoft.com/choosetransfer.aspx?key=590562a2-e489-4710-9d3f-b5435b107d78 Password: MExvxR$M40^GN I will perform a further research on the issue after receiving the file. Thank you for your cooperation.

I can't get on that computer at all to do that kind of stuff.. When i try to repair it says that the line thing was missing

Hi, Thank you for your clarify. Given the current stage, I'd like to recommend that you contact Microsoft Customer Support Service (CSS) for assistance so that this problem can be resolved efficiently. To obtain the phone numbers for specific technology request please take a look at the web site listed below: http://support.microsoft.com/default.aspx?scid=fh;EN-US;PHONENUMBERS If you are outside the US please see http://support.microsoft.com for regional support phone numbers. Hope it helps.