Windows7 keeps hanging when running repair from win7 cd

Just yesterday my son said he installed a program which he doesnt remember the name but immediately afterwards, the laptop crashed and even when attempting safemode, it keeps crashing so can't even accesss system restore.  Tried using windows7 cd and selected repair option but it just hangs for hours on the same screen with mouse cursor doing nothing.  Running avira rescue cd on it now but have a feeling this will still crash so any ideas?  Dont wanna have to restore from factory settings coz he never backed up his files and dont wanna lose his stuff.  Thanks.
Who is Participating?

[Product update] Infrastructure Analysis Tool is now available with Business Accounts.Learn More

I wear a lot of hats...

"The solutions and answers provided on Experts Exchange have been extremely helpful to me over the last few years. I wear a lot of hats - Developer, Database Administrator, Help Desk, etc., so I know a lot of things but not a lot about one thing. Experts Exchange gives me answers from people who do know a lot about one thing, in a easy to use platform." -Todd S.

JohnBusiness Consultant (Owner)Commented:
With the situation you describe (Repair Install and Rescue software fail), start with a Bootable CD (Ultimate Boot CD or like) and copy the files and email you need onto a USB hard drive or USB Key. Once you have backed up, use the Windows DVD and if it wants to do a fresh install, let it proceed. Back up before going farther.
Run check disk before you reinstall, or anything else.
Number one culprit from my experience for symptoms that are described above is file system error.
You can do that from live CD or USB drive with OS, or get HDD of of laptop and attach it to enclosure or PC etc... then check all partitions.

Experts Exchange Solution brought to you by

Your issues matter to us.

Facing a tech roadblock? Get the help and guidance you need from experienced professionals who care. Ask your question anytime, anywhere, with no hassle.

Start your 7-day free trial
dankyle67 --
Can you reach Control Panel?  If so, look at all the installed programs and see if you can find the culprit.  Then highlight and Uninstall.

Without meaning to sound hard hearted, perhaps this is a good lesson for your son.
1)  Do not install a program without scanning for malware.
2)  Run backups frequently.
Acronis True Image 2019 just released!

Create a reliable backup. Make sure you always have dependable copies of your data so you can restore your entire system or individual files.

dankyle67Author Commented:
Since I can't even access windows I can't get to control panel. That would be too easy and as mentioned I can't even get into safe mode to try running system restore
JohnBusiness Consultant (Owner)Commented:
Boot with a CD, back up and reinstall Windows
dankyle67Author Commented:
Found that hal.dll in system32 was corrupted so copied from another working win7 laptop and placed it into non working one and it started up so all good now, thanks for the help.
JohnBusiness Consultant (Owner)Commented:
@dankyle67  - Thanks for the update and I was happy to help.
It's more than this solution.Get answers and train to solve all your tech problems - anytime, anywhere.Try it for free Edge Out The Competitionfor your dream job with proven skills and certifications.Get started today Stand Outas the employee with proven skills.Start learning today for free Move Your Career Forwardwith certification training in the latest technologies.Start your trial today
Windows 7

From novice to tech pro — start learning today.