Yesterday acer aspire 5560-7402 with windows 7 home premium 64-bit was running normally. Powered laptop up today and password was not recognized. Used F8 to attempt safe mode and repair computer option was listed. Tried that, asked to enter desired keyboard type (US chosen), user account came up, asked for password. Password invalid. Attempted restart of computer so could insert operating system disk and boot from there. Somehow got windows was interrupted during startup, attempt startup repair? Chose yes. Ended with
"Startup Repair cannot repair this computer automatically, send info to microsoft?
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: 187
Problem Signature 05: AutoFailover
Problem Signature 06: 1
Problem Signature 07: NoRootCause
OS Version: 6.1.7601.2.1.0.256.1
Locale ID: not listing that info
What on earth?!
Hardware, software, virus?