Hp compaque presario f700 sometimes working but most of the time always restarting and no display. what is the problem?

hit the f5 key then follow the screen from there that is in safe mode

Move the laptop closer to the wireless tramsmitter if it works most of the time then you can get a booster.
Terry

Follow this steps
1)go to this link
2)enter your product name/number
3)select your product
4)select your operating system
5)select driver audio
6)click on download button
7)run downloaded file
8)install driver
9)restart your pc

Was there any power outage in your area and was the laptop plugged in at that time, if so your Motherboard has been fried, your need a new Motherboard.

Since the problem you describe is intermittent I would first suspect a loose or shorted electrical connection. To check this you will need to take the computer apart. Step by step photos of this procedure are at http://www.insidemylaptop.com/disassemble-compaq-presario-f700-notebook/ .
Once you have access to the lcd cable you can check its connection and the condition of the cable itself. If the connection is secure and the cable looks good you probably have a bad lcd. 

This doesn't always work but it will give you a heads up of what may be the problem.....

http://www.laptoprepair101.com/laptop/2008/04/13/laptop-lcd-screen-turned-white/

try removing battery and small watch battery and disconnect power for 10 min then replace and restart. If it comes back on it will do it again when you turn it off, so don't, lol. I have this problem and everyone says these have motherboard problems. From what I can see they don't remember bios on startup. I'm still searching, Hope this helps.

Go into the control panel and under power options, change your settings.

hi..
you have to download the drivers from your computers website...to find out the model of your computer > system tools > system information..

thank u
rate me!!

Hi,
Download from following link.Just select your operating system and download the latest version

http://h20000.www2.hp.com/bizsupport/TechSupport/DriverDownload.jsp?prodNameId=99905&lang=en&cc=us&taskId=135&prodTypeId=321957&prodSeriesId=96403

Thanks