L505D. Why won't it boot?

several possible reason
trying to install over an existing installation causing conflicts
damage cd that is being used to install from
Bios not properly set for the boot disc selection
problem HHD hard drive
If you are trying to reinstall win 7 after a disastrous win 10 up grade attempt to may have to consider uninstalling win 10 upgrade and then save all data and files to an external disc and then reformat the hard drive and reinstall a fresh win 7 program

neither
upgrading to win 10 from win 7 without using the win 10 cd or gig stick creates a conflict of operating systems in the C drive
I had the same problem thinking that it was a free upgrade and when installed the pc gave me heaps
talked to my IT wiz and he explained that the upgrade caused problems and if I wanted to use win 10 install it from the media after uninstalling win 7
needless to say I am still using win 7 after I uninstalled the win 10 and the pc is trouble free up till now as there are driver problems appearing, win live mail problems and other issues because win 7 is no longer supported by Microsoft and the program is slowly breaking down
AS for you problem c, take it to an IT geek and have him get into the os to clear the upgrade
Then get the win 10 program and have him uninstal win 7 and install win 10 for you

Safemode is F8 during boot and it should come up unless you missed the right time interval. Tap it repeatedly during post. IF you still can get in, then you will have to download a boot disk with a password program on it. Hirens boot CD is one of those.

it indicates a problem in the boot up process
missing files or corrupt program
could be a failing hard drive or a compatibility with the win 10 operating system especially if you just used the win 10 upgrade on another platform like win 7
take it to a laptop repair shop and have it tested and diagnosed

Missing drivers seem to happen with windows 7. You can try booting up your computer with the original Windows 7 DVD - but DO NOT do a fresh install - do a windows repair. Hopefully the missing driver will be installed and you will not loose any data.

Good luck - it that fails it might be a good time to upgrade to Win 10 - I have found that it is quite stable and takes care of all Win 7 driver issues.

Upgrade the memory and try win xp you'll see better performance. You can download win 7 from lots of places free.

It is the license that you have to purchase that people seem to be trying to find a get around for.

Just go to Microsoft website or search for win 7 iso

Good luck and thanks
Questions? Just ask! Mr.Mike

You need to install Windows 7 again from CD/DVD. You will need a Windows 7 Bootable Disc.

Don't worry about "compatibility" issues. You can pretty much force Win 7 onto just about any laptop.

What you need to do is backup your files (that is if you have any you want saved)

You need to do a CLEAN install, not the UPGRADE when you boot from the Windows 7 cd.

Delete ALL of the partitions...then hit NEXT.

When it's done installing, run the updates and if you're missing any drivers after the updates post back the model of your laptop / desktop and we'll help you patch the missing ones.

Best of luck!

ok get a windows 7 disk and turn of the computer and ad the hard drive switch on the computer and set it to boot from disk (seems windows is broken on the 500gb hdd) then boot from disk and install windows 7 to the 500 gb hard drive and set in the bios the boot select for the hard drive (if you use win xp more then make that boot primary) then go threw all the rigmarol of installing windows 7 to the 500 gb one and your done it will have bootable hard drives and will offer a choice when first switched on