BSOD on Lenovo laptop-0xFFFFFFFFC0000005

What antivirus are you using?

Install all updates including service pack one: Learn how to install Windows 7 Service Pack 1 (SP1)

But before that run SFC scan

Run the System File Checker that scans the of all protected Windows 7 system files and replaces incorrect corrupted, changed/modified, or damaged versions with the correct versions if possible:

• Click on the
• Type CMD on Search
• Left click and Run as Administrator
• Type SFC /scannow

Full tutorial here:

• SFC /SCANNOW Command - System File Checker

 Clean boot

• Troubleshoot Application Conflicts by Performing a Clean Startup

Reduce items at start-up. No software except anti-virus is required plus doing this improves the time for logging into windows:

• How to Change, Add, or Remove Startup Programs in Windows 7

Make scans with the following:

Kaspersky TDSSKiller

• Anti-rootkit utility TDSSKiller

ESET online scanner:

• Free Online Virus Scanner | ESET

Run Disk Check on your Hard Drive for file system errors and bad sectors on it.

 Hard Drive Diagnostics

• Double click and open my computer.
• Right click on desired drive and hit properties.
• Click on tools tab and Check now.

Read complete instructions on the tutorial: Disk Check

Other Tests:

 

• Upload a screenshot of your hard disk using Crystal Disk Info.
• Make a hard drive test from the hard drive manufacturers website.
• Test your Hard Drive with SeaTools.