laptop stays at welcome screen. only the cursor visible and it is enla

Ok so while I was going through the list a friend has just come over with a genuine installation disc for windows 7. So I popped it in and the same thing happened. I then went in to the boot setup bios and changed it to boot from the DVD drive first. Then started it up again, this time holding f8 . The boot menu appears and i select safe mode. This time the computer enters safe mode and gives me the option of installation or repair your system.I chose repair your system and nothing happened for a while. Then a window pops up that says system recovery options. this is where the computer is now. It is still on this screen and as the cursor is displaying the loading icon i am unable to select the next option. Does this normally take a while before I can select next?

It is searching for the windows installation on your compiter and then it will try an automated startup repair.

Give it a time. The next button may take a time to be executable.

For Toshiba you should tap the F12 key at reboot to get a boot menu, select DVD to boot: How to Boot A Computer from CD or DVD - YouTube

Then enter System Recovery Options to run Startup Repair several times with reboots, post back what it reports.

Then start at the top of the Troubleshooting Steps as it may not repair until disinfected.

ok so that window just stopped and I hit next. Then it brought up the window with the option of start up / repair so I pressed this and now it is doing something. Thanks to all of you so much for your advice so far.

ok so the first one just told me that i need to re starts for it to repair. so i did and it still started with the same problems. the second attempt has just finished and it says that if you have recently installed a device ,then to remove it.( i have not installed anything for a while and there is nothing connected to the laptop). so i view the diagnostic and repair details and it says number of repair attemps =1 and the number of root causes =1 . so i scroll down and they are all successful until i get to the bottom which says
no os files found on disk
repair action partition table error
result: error code =0x490
time taken=276309ms

i then clicked on advanced system options and am now doing another start up repair

Then work through the steps for Troubleshooting Windows 7 Failure to Start

Thorsen said:

startup repair should be ran 3 times so keep at it. hopefully it fixes the issue.

ok but inbetween the first and second times, i tried to boot it as normal without the disc in. does this matter? does start up repair need to a consecutive run of 3 times to work?

gregrocker said:

Then work through the steps for Troubleshooting Windows 7 Failure to Start

ok so if this 3rd attempt does not repair it then i will do this. i was doing it but after my mate brought the disc over I thought id give this a go first

If it doesn't detect an Installation to repair when you boot into Repair My Computer, then try the Bootrec commands from Step 7 of the tutorial which can force an installation to show up to repair.