I have an Acer Aspire 4935G. After a Windows Update, I was prompted to restart. But when it was booting up again, it went into its Startup Recovery mode, and the error says that a boot critical file, ntkrnlpa.exe, was corrupted.
I don't have a Vista CD to do a Repair. I still have the Recovery partition (I also have Recovery Discs) but I've read that using either will do a clean install. I save most of my data in a separate partition: I moved my Documents and other locations to the default D: partition, but I forgot to move my AppData, which includes a backup of cellphone contacts and messages that I still want to recover.
Is there any way I can repair my Vista installation without data loss?