Restart your computer.
Check for proper boot order in BIOS.
Run System Restore from a Command Prompt.
Repair or replace the boot.
Write a new partition boot sector to the system partition.
Recover data from any bad sectors on your hard drive.
Restore the hal.
Method 1: Load Recovery Console Insert the Windows installer disc and restart the affected PC. Press Del or F2 and boot Windows from the CD (inserted disc).
Method 2: Restore Hal.dll File Type cd system32 in Recovery Console for accessing system32 folder.
Method 3: Repair Boot.ini In case hal.dll is not corrupt, it may be boot.ini file, which may be the cause behind unbootable Windows.
Final method: Fix the broken dll with a tool (DLL File Fixer) Go to dll-files.com. Download DLL Fixer Free/Premium. It will be installed on your PC. Right-click the DLL Fixer icon on the desktop. Click Run as administrator. You will see a quadratic search.
Among the Windows XP problems that are usually related to system files, it is best to run a new system scan that looks for corrupted Windows files. Follow these steps to perform a quality scan of Windows XP system files: While holding down the primary Windows key, press your regular R keyboard. In the Run dialog box, type sfc /scannow and click OK.
First, rename the corrupted or unsafe file so that the original copy of the registry cannot delete it. To do this, enter the appropriate command: ren USER32.DLL USER32.BAK Then restore the original User32.dll file from our Windows CD to your computer. To do this, enter the following descriptor:
Another common cause of DLL errors is malware or virus infection. In particular, infecting your system with malware, spyware can lead to errors in your DLL. A DLL error can also occur when uninstalling an application that is fully linked to a DLL for actual use.
How do I fix Unarc dll and Isdone dll errors in Windows DISQ us?
How to re-register these DLL files.
How do I fix Unarc DLL and ISDone DLL errors in Windows DISQ us?
How to re-register these DLL files.

I’m a writer for uscfr.com. In my opinion, technology should make our lives easier, not more complicated. That’s why I enjoy breaking down complex topics and explaining them in a way that everyone can understand. In my free time, I can be found tinkering with new devices or coding up new apps.