author avatar
    Technology Manager of Test Dept.
 

Summary

Many users have encountered the blue screen problem when trying to boot the PC. It’s a symptom of operating system breakdown. What are the reasons? And how to fix the error 0xc0000034 if it appears? Next, three solutions to fix the error 0xc0000034 will be provided here.


What Causes Error Code 0xc0000034?

Cause 1: Error code 0xc0000034 is related with BCD. If the Boot\BCD file is damaged or missing some required information, error 0xc0000034 will appear.
Cause 2: Bad sector. Unreadable system files are stored at the bad sectors of hard drive.
Cause 3: Incompatible hardware or software. You may install some hardware or software that are incompatible with computer system.
Cause 4System breakdown. In this case, Windows operating system needs to be restored or reinstalled.
Next, according to above causes analysis, you can try the following three solutions to fix the error 0xc0000034.

How to Fix Error Code 0xc0000034?

Solution 1: Fix Error 0xc0000034 via Windows Automatic Repair
Step 1: Connect Windows installation media (bootable USB drive) to the PC. Change boot order in BIOS setup and put “Removable Devices” as the first boot choice.
change boot order
Step 2: After the PC booting from USB drive, click “Repair your computer” in the bottom-left corner.
Repair your computer
Step 3: Then select “Troubleshoot”> “Advanced Options”> “Startup Repair”. Repair process may take some time. Please restart the PC after it completes.
startup repair in Windows
If this way can’t fix the error 0xc0000034 successfully, please try the next solution.
Solution 2: Fix Error 0xc0000034 with Command Prompt
Step 1: Connect Windows installation media (bootable USB drive) to the PC. Change boot order in BIOS setup and put “Removable Devices” as the first boot choice.
change boot order
Step 2: After the PC boot from USB drive, click “Repair your computer” in the bottom-left corner.
Repair your computer
Step 3: Then select “Troubleshoot”> “Advanced Options”> “Command Prompt”.
command prompt
Step 4: In the command prompt, type following commands. Please press “Enter” after typing each command:

Bootrec/fixmbr

Bootrec/fixboot

Bootrec/scanos

Bootrec/rebuildbcd

Repair or Rebuild BCD
Reboot the PC after you execute above commands successfully. If this solution does not work, please try solution 3.
Solution 3: Scan and Repair Bad Sector
If solution 1/2 can’t fix the error 0xc0000034, it’s suggested to scan and repair the bad sector.
Step 1: Download the free hard disk detection tool - HDD-SCAN. Run it to scan the hard disk.
HDD SCAN
Step 2: The scan process may take some time. If there are lots of bad sectors, it’s suggested to restore them as soon as possible.
bad sector found in HDD Scan
Step 3: You can restore bad sector with the repair tool that’s provided by hard drive manufacturer.
Tips Please note that the repair tool provided by hard drive manufacturer may erase the computer data while restoring bad sectors. It’s suggested to use Renee PassNow or the built-in Scandisk option in Windows.
If the repair tool is not available from suppliers, you can start the initial repair via built-in Scandisk utility in Windows 7/8/10.
Step 1: Press “Win” + “R” key.
press win and r button
Step 2: In the “Run” box, type in: diskmgmt.msc. Click “OK”.
run diskmgmt.msc
Step 3: When you see the “Disk Management” window, right click the target partition and select “Properties”.
partition of hard drive
Step 4: Next, click the “Tools” tab and then click “Check”.
Check prtition
Step 5: In default settings, Windows 10 automatically fixes the system errors. If you’re using Windows 7/8, please remember to check the item “Automatically fix files system errors” and “Scan for and attempt recovery of bad sectors”.
fix system errors Windows 7/8

If there’re still lots of bad sectors or they occur frequently after fixing, you may need to replace the hard drive.

It’s suggested to transfer data from the old hard drive to the new one. Renee PassNow can help you out!
To prevent data lost, Renee PassNow can help you copy all data in the hard drive to a new one. Besides, Renee PassNow also provides Windows password reset, data transfer, data recovery, hard disk scan, etc.

Step 1: Download and install Renee Passnow on any other workable computer. 

The Windows computer you installed Renee Passnow need to be able to login and work normally (The Windows version of the computer you are using to create the new password reset disk does not matter.).
press to the download button

Step 2: Launch Renee Passnow. Create bootable media with USB/CD/DVD. 

create bootable media with Renee Passnow

Step 3: Boot the target computer with the created bootable media.

Please hold a Hot key to enter the BIOS menu.Please click here to find how to change the boot order of your computer brand. Please make the create bootable media to be the first in the boot order. (Can not find your brand? Please refer to your PC manual to find out the method.)
change boot order in BIOS menu

Step 4: After loading into the main interface of Renee Passnow, please select “Data Transfer” function.

data recovery function in Renee Passnow

Step 5: Select the original disk and target disk. And drag the target files to the target disk directly. 

run data transfer function in renee passnow