My notebook has not been able to boot into Vista recently. This happened after I restarted my computer today, due to a Windows Update prompt. Additionally, before the problems arose, I also updated iTunes and QuickTime and installed Mobile Mouse; however, that's just today, and it's been a long time since I've rebooted my computer before today.
I have let Startup Repair run many times, with no luck; additionally, I have used System Restore to return to a restore point on the 29th, a RevoUninstaller point. That was successful because I have no restore points after that now, and had none before. However, my problem persists.
I attempted Safe Mode with Networking, which also failed, but it strangely showed that C:\Windows\SysWOW64\speedfan.sys was the last file loaded before the freeze and crash into Startup Repair. Speedfan.sys is related to Speedfan.exe, a program for monitoring system temperatures that I installed a while ago. I did not think it should load during Safe Mode. I then used del "C:\Windows\SysWOW64\speedfan.sys" to delete the file. Safe Mode still failed to boot, with a different file at the end. In Startup Repair again, all the Restore Points were back; I chose one today, as I updated iTunes. Again, did not resolve the problem. I tried to delete speedfan.sys again with an error telling me the directory was incorrect. I rebooted into Safe Mode, and speedfan.sys was indeed loaded again, right before Startup Repair.
From Startup Repair, problem details are as follows:
Problem Event Name: StartupRepairV2 Problem Signature 01: AutoFailover Problem Signature 02: 6.0.6.000.16322.214.171.12401.18000 P.S. (abbreviated, obviously) 03: 5 P.S. 04: 589833 P.S. 05: Corrupt File P.S. 06: Corrupt File P.S. 07: 3221226536 P.S. 08: 2 P.S. 09: SystemRestore P.S. 10: 6.0.6000.2.0.0.256.1 Locale ID: 1033
I have Windows Vista Home Premium 64-bit. P.S.: Sorry if there is no formatting. It appears correct in Edit mode on my iPod.