Why wont my G62 laptop start normally?

[AkasFil]

When I start my laptop even thought the light and the fan is on it wont start its just a black screen. Its not a monitor problem because I tried recovering the bios and it showed me the process. The first time that happened I let it on for some hours and it worked but now it wont work again. I tried reseating the Ram Cards. I dont know if its relevant but the wifi key has a red light on. I dont have the battery attached ,only the power plug . I have even tried removing the plug and pressing the power button to drain the battery.

[Echo_Lake]

@AkasFil
Thank you for posting on the HP Support Community.

I see that your HP G62 laptop won't turn on normally, I appreciate your efforts to try and resolve the issue.

Let's try: 

Hard Reset:

1) Shutdown the computer.  

2) Unplug all the Adapter and peripherals connected.  

3) Press and hold down the power button for 15 to 20 seconds.  

4) Plug-in the Adapter.  

5) Try to turn on the computer. 

Hope this helps! Keep me posted for further assistance.

[AkasFil]

Somehow my wireless mouse blocks the normal startup of the laptop. If I unplug it I dont have any problem it starts normally and I plug it when I am in the home page and works fine. If I have it plugged in before the homepage it wont start I only have black screen. Can anyone explain this?

[Echo_Lake]

@AkasFil

Thank you for posting back. 

Let's try: Bios default.

1) Shutdown the computer. 
2) Turn the computer back on again and repeatedly tap on the ESC until a Startup menu appears. 
3) Press F10 once for BIOS. 
4) Press F9 for BIOS defaults. 
5) Press F10 to save and exit. 

Next Perform Windows Update and HP Support Assistant: (while updating the drivers please disconnect the wireless mouse)

To check for updates now, select the Start button, and then go to Settings  > Update & security  > Windows Update, and select Check for updates.

Install updates from HP Support Assistant: Go to Download HP Support Assistant to install the tool.

1. To open HP Support Assistant, double-click the HP Support Assistant icon .
2. Click My devices in the top menu, and then click Updates in the My PC or My notebook pane.
3. Click Check for updates and messages to scan for new updates.
4. Review the list of updates. Updates with a yellow information icon are recommended. Updates with a blue information icon are optional.
5. Click the update name for a description, version number, and file size.
6. Select the box next to any updates you want to install, and then click Download and install.

Hope this helps! Keep me posted for further assistance.
If I have helped you resolve the issue, feel free to give me a virtual high-five by clicking the 'Thumbs Up' icon below, Followed by clicking on "Accept as solution" from the drop-down menu on the upper right corner, 
 

Thank you for posting in the HP Support Community. 

Have a great day!