> it's not booting into windows 7
What's the specific symptom? Any error message, or frozen somewhere? Better a screenshot please (using your phone)?
Okay, never tried Safe Mode?
If so, first try pressing F8 to start Windows in Safe Mode. If successful, then restart you computer as usual.
> Error code 0000 read verification error
Just clarify: 0000 means "no error" or "read error"?
If so, given the drive is hard disk (not SSD) and was accidentally dropped, and Windows is hanging there while loading a driver, it is highly likely a hardware failure on hard disk due to physical damage, especially the BIOS already give read error at diagnosis, I don't think the drive can be repaired and should be replaced.
Do you have valuable data on the disk?
As the last resort, try changing disk mode to AHCI in BIOS and see if the same issue (hanging at classpnp.sys) persists.
BTW, were all memory tests passed in BIOS diagnosis? Just in case the memory modules have issues (such as not aligned) due to the accident.
Yes, that means it is not a memory issue. What you need to do is to get a new hard disk now.
If the laptop is still under manufacturer warranty, you may consider going back to Lenovo for repair or replacement. I know it was caused by a drop damage, but some laptop such as HP does provide HD protection. I believe Lenovo has the similar protection mechanism.
You are welcome.
BTW, if you think your question and concerns have been well addressed, please kindly accept my answer and rate my services to close this question.
You can still come back to this question after the answer has been accepted. Please feel free to update here about the upgrade info or discuss new concerns about the disk replacement.
SSD replaced? All good now?
Any feedback please?
As your issue has been well addressed and the problem was located, can you kindly accept my helpful suggestions and rate my service to close the question? Thanks for your understanding and effort.