My dvd sony crx835e is not reading any disk that is cd or dvd after inserting a disk whenever i click on that it saying please insert disk into drive e.

Welcome to fixya,

Sir,

Your Sony Drive can burn cd's and can read dvd's.But u cannot write any dvd's because its a DVD-Rom not DVD-RW.

Thanks.

It was not designed to do that, that model will record and read CDs and read DVDs but will only write CDRs or CDRWs.

Could be just a dirty lens. Try :-

1) Blowing some compressed air through it. You can get cans, may already have one.

2) Running a CD lens cleaner. Its practically the same mechanics.

After that, its taking it out and cleaning it.

Bad Norton install. Actually bad Norton. Its causing driver corruption.The fact that it appears only when you insert a cd-r it's just random occurence, it could have happened as well when you would have tried to print something.
Best fix: just get rid of Norton , it's useless anyway. Get a decent antivirus for start. Otherwise uninstall it using the official uninstaller (not by using its uninstaller), run a registry cleaner, install it again using this time a diferent location and hope to gods that this time it won't screw your pc.

the combo drive you listed above is a cd-rw/ DVD-ROM....meaning that it will play and burn cd, cd-r, and cd-rw disks. the dvd rom will only be able to play dvd-rom and dvd-r disks providing they are in the proper format. check that the disk in question is not a dvd-rw or (+2) disk. the drive will not recognize that a disk is in the drive if the disk isnt compatable. try a dvd movie, if that works then a dvd-r, if that works then try a dvd-rw +1. if the last option doesnt work then you will have to stick with the dvd-rom and dvd-r, or purchase a dvd-rw drive to install.

GOOD LUCK AND DONT FORGET TO RATE MY POST!! :D

You have a combo - an optical drive that is a cd writer and a dvd reader. You can't write dvd's with it.

There are dozens of free perfect functioning  burning software. the one that i use is Totally Free Burner 3: as the name says it's free, extremely small ( just 1 MB compared to 100MB for Nero), fast and very easy to use. get it from here http://www.softpedia.com/get/CD-DVD-Tools/Audio-CD-DVD-Burning/Totally-Free-Burner.shtml

it means that your driver for that device is not completely install. so reinstall the driver.
thanks for your question

If it would have been a soft problem it wouldn't have worked at all, the driver is for the unit, not just for a function. Most likely it's a HW problem: either the laser died or the lens is dirty - try cleaning it.
Btw if your unit can't read cd's how those morons at the shop expect that you could reinstall (or repair) your Windows? 
Test your unit your self: take it out, put it in another laptop (or in an external case and attach it to another pc and check there. If it's dead then replace it with a new one - preferably a dvd-writer of any mark.

that is b/c you only have an CDRW/DVD ROM (from your title). You need a DVD+-R to be able to write to a dvd+ - R disk.