I've Toshiba Satellite A300 , and there's problem , once I connect my AC adapter to my labtob it restarts directry, and there's no problem when I connect my AC adapter to my labtob offline or even inthe safe mode.
I tried to update the BIOS but I caudln't as it's difficult to udate the BIOS without connecting your AC adapter..
one thing else I changed my AC adapter with another one but nothing changes, and I recoverd my labtob to original vista OS but also nothing changed
maybe there is a problem with your battery...low capacity or need for replacement...broken battery can prevent windows from normal start.
in safe mode window doesn't load drivers and thats why you can load safe mode.
try without battery pack
sorry for my english and good luck
With or without the battery, the notebook should run stable connected to the mains…
If it’s not the case, it could be possible that your motherboard is affected… but hopefully its not since this would be the worst case
thanks 4 ur reply , just wanna tell you that I tried to remove the the battery and connect the the AC adapter without the battery ,my computer loading the windows and restart before entering to desktop.
The notebook does not work even after performing the recovery?
Looks like hardware issue…
Did you test the HDD?
Check this using an tool called Drive Fitness Test. This would help you to detect HDD issues.
I have the same problem with restarts and ac adapter. Now I'm trying update BIOS but I must first reinstall Vista. I have already wiped the drive but can only install on battery .. no ac adapter. If I fully charge the battery, I can begin the install but the battery dies before I can finish. Please help if you can. This isn't my PC and they are counting on me. I hate to disappoint them.
This is a problem related with a bad capacitor called NEC/TOKIN Proadlizer OE907, which needs to be replaced.
You can find a lot of info by googling. For example, search "A200 random shutdown" to find relevant details and links.