Watchdog and trouble following

Hello Pantaleimona,
We are sorry to know that you got watchdog error. To fix this issue, we suggest you to unplug any USB devices connected to your computer. After that, please restart the computer and check if that fix the issue.
Thank you.

Upon opening my laptop yesterday, I saw Watchdog message flash on screen. I researched it and tried advice I found recommending AVG uninstall.  I did it, used computer for a little while without restart before turning it off for the night.  I went to boot it up this morning and it will only come on for less than 5 se ones before shutting itself off.  I tried spamming F8 with success. Any help would be appreciated.

Hello Pantaleimona,
We are sorry to know that you got watchdog error. To fix this issue, we suggest you to unplug any USB devices connected to your computer. After that, please restart the computer and check if that fix the issue.
Thank you.