windows activation error 0x80070307

[msimon8246]

i have a machine that i use occasionally @ my vacation home, had it for a few years and all of a sudden when i start it up i get an error message"window cannot validate-error 0x80070307". tried rebooted several times ,same crap. i also don't have a restore disk and i also didn't do anything i could think of to cause this,no changes in config. or hdwr.

please help???!!!!

[cluberti]

According to the windows headers, this looks like your activation has indeed been marked invalid, as that error code maps to "ERROR_BLOCKED". Assuming this was a legitimate install that's just been off for awhile, consider contacting the activation clearing house at 866-740-1256.