Error 1603: Fatal Error During Installation

The process of copying files from installation disc to your hard disk fails with error 1603. Clean the scratched installation media. Besides, setting correct Registry configurations, reregistering Windows Installer components may also help.

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Alternative manual troubleshooting steps are given below:

Verify Folder Security Permissions

The folder chosen to install your program doesn’t have adequate security privileges. Fix the folder permissions.

For Windows 10/ 8.1/ 8/ 7/ Vista:

1. Double click This PC or Computer or My Computer icon.
2. Open any of the following folder:

  • C:\Program Files
  • C:\Program Files (x86)


3. Right click the folder you selected for installation. Remember, this is the folder where you tried to install a program.
4. Select Properties from context menu.
5. This opens up Folder Properties dialog box. Click Security tab.
6. Select your user name under Group or User Names category.

Verify-Folder-Security-Permissions 7. Click Edit to modify folder security privileges.
8. Check-up following boxes in Allow column:

  • Full control
  • Modify
  • Read & execute
  • List folder contents
  • Read
  • Write
  • Special permissions


9. Click OK | OK.
Note: You must be logged-in from Administrator user account.

Not Enough Space for Installation

Clean up the disk, delete setup extracted contents and temporary files.


For Windows 10/ 8.1/ 8/ 7/ Vista:

1. Double click This PC or Computer or My Computer icon on Desktop.
2. Right click the drive you selected for installation, usually drive C:
3. Select Properties from context menu.
4. Now that you have Disk Properties dialog box opened up. Click General tab, and then Disk CleanUp button.
5. Analyze and clean temporary files, setup extracted contents, Recycle Bin contents, downloaded files, and so on.

Enable Short File Name Creation

Error 1603 appears when short file name creation is disabled. Re-enable it again using Registry Editor.

For Windows 10/ 8.1/ 8/ 7/ Vista:

1. Press Windows Key + R, type “RegEdit” in Run dialog box. Press ENTER.
2. You have now Registry Editor opened up.
3. Locate following sub key:

  • HKEY_LOCAL_MACHINE\SYSTEM\CurrentControlSet\Control\FileSystem


4. Double click “NtfsDisable8dot3NameCreation” string. Replace its value with “0” (without quotes).

NtfsDisable8dot3NameCreation 5. Exit out of the screen; restart your machine.

Note: If you fail to locate “NtfsDisable8dot3NameCreation” string, create a new one. Go to the target sub key, click Edit | New | String Value. Specify a name and value for the new string.

Choose a Different Drive for Installation

Try reinstalling the program in a different partition, say drive D: or E:. You might not have required privileges to install the program in system drive.

Verify that Windows Installer Service is Not Stopped

Windows Installer service is used during setup operations. Restart it if it is already stopped.


For Windows 10/ 8.1/ 8/ 7/ Vista:

1. Press Windows Key + R. Type “services.msc” and click OK.
2. Scroll down the page.
3. Right click “Windows Installer” service, select “Start” option in case it is already stopped.

Temporarily Disable Antivirus

Pause the protection and check if the problem still persists.


For Windows 10/ 8.1/ 8/ 7/ Vista:

1. Right click system tray icon of your Antivirus software, select Pause Protection.
2. This opens up a confirmation prompt. Go ahead and specify a time period, say 30 minutes.

Enable Java Content in Browser

Make sure Java content in browser feature is enabled.

For Windows 10/ 8.1/ 8:

1. Press Windows Key + X, select Control Panel.
2. Type following location Address Bar:

  • Control Panel\All Control Panel Items

3. Click Java Control Panel icon.
4. This opens up a new dialog. Click Security tab.
5. Check-up the box named “Enable Java content in the browser”.
6. Click Apply.

For Windows 7/ Vista:

1. Click Start, select Control Panel.

2. Type “Java Control Panel” in the Search Box located on upper right.

3. Open the keyword from Search Results.

4. Refer Steps # 4-6 under Windows 10/ 8.1/ 8 user’s section.

One thought on “Error 1603: Fatal Error During Installation

  1. Ava Robes

    It used to show at the top of my start list until I actually downloaded google-chrome to see what it was about, I didn’t really like this so I deleted it great firefox isnt at the top of begin. Any tips?.


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