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Friday, July 17, 2015

How to Solve "shellexecuteex failed code 1203" Error on Your Windows

“I have a "shellexecuteex failed code 1203" error, everytime i try to open an .exe file windows says either "cannot access file, location is not available, C:/ is not accessible or access denied". 90% of the files i try to open gets an error code, most of the apps won't even open and i cannot change any setting because windows says i'm not the administrator (there is only one account on the computer), i can't restore or reinstall windows because "access denied"…”

“I recently downloaded a program, and when i tried to run the .exe file i got an error box with the error ShellExecuteEx Failed; code 1203. I tried to install an anti-malware program, and when i tried to run that file i got the same error, but with code 2 this time.”

There are lots of computer users complaint that their PC always receive Window Error called "shellexecuteex failed code 1203" error, which has interrupted their online work seriously. And they also have no idea to solve it. If your computer also encounters this problem, you are suggested to read and follow the removal guide listed below.


"shellexecuteex failed code 1203" error appears constantly on your computer screen, it means that your computer might be infected with malware or viruses. Basically, your computer might be easily infected with malicious programs when you download freeware from unsafe websites and are not careful enough to tick off the checking boxes. Besides, malicious links and websites, spam email may are also used for malware and viruses."

What kind of threats brought by "shellexecuteex failed code 1203" error


  • You cannot start up your PC normally.
  • You are not able to get access to the programs you have installed.
  • Your PC runs slowly and even crash
  • Your system may be infected with more computer threats including malware and viruses.
  • It may steal your confidential information and send them to cyber criminal for illegal things.

If you don't have much time or patience to solve "shellexecuteex failed code 1203" error and remove potential viruses, you can download and install Spyhunter to do the job for you. You not only enjoy the removal but also can keep Spyhunter and protect your computer in the future. Go on and Try it.

Remove virus that caused by "shellexecuteex failed code 1203" error step by step


>>Method 1: Manual Removal Guide

Step 1: Restart your computer in safe mode with networking.

Step 2:  Show all hidden files and clean all the malicious files about "shellexecuteex failed code 1203" Error.

Step 3: Remove "shellexecuteex failed code 1203" Error from Registry Editor. 

>>Method 2:Automatic Removal Guide

Step 1: Download and run SpyHunter to detect and remove "shellexecuteex failed code 1203" Error infection.

Step 2: Download and run RegCure Pro to fix registry files and security bugs caused by "shellexecuteex failed code 1203" Error.

>>Method 1: Manual Removal Guide

Step 1: Restart your computer in safe mode with networking.


(1) Restart your computer, as your computer restarts but before Windows launches, tap "F8" key constantly.
(2) Use the arrow keys to highlight the " Safe Mode With Networking" option.
(3) Then press Enter.



Step 2:  Show all hidden files and clean all the malicious files about "shellexecuteex failed code 1203" Error.
  1. Click the button Start and then click Control Panel.
  2. Click Appearance and Personalization.
  3. Click Folder Options. And then, click the View tab in the Folder Options window. And choose Show hidden files, folders, and drivers under the Hidden files and folders category.
  4. Click Apply at the bottom of the Folder Options window.


Step 3: Remove "shellexecuteex failed code 1203" Error from Registry Editor. 

(1) Go to Start Menu and open Registry Editor.

(2) In the opened Window, type in Regedit and then click OK.
(3) Remove the related files and registry entries in Registry Editor.





>>Method 2:Automatic Removal Guide

Step 1: Download and run SpyHunter to detect and remove "shellexecuteex failed code 1203" Error infection.

What can SpyHunter do for you?
  1. Give your PC intuitive real-time protection.
  2. Detect, remove and block spyware, rootkits, adware, keyloggers, cookies, trojans, worms and other types of malware.
  3. Spyware HelpDesk generates free custom malware fixes specific to your PC.
  4. Allow you to restore backed up objects.
1: Download SpyHunter by clicking on the button below.


2: Follow the details to complete the installation processes listed below.

1) Double click on the download file, and follow the prompts to install the program.


2) Then click on "Run", if asked by the installer. The installer needs your permission to make changes to your computer.


3) SpyHunter installer will download its newest version from the Enigma Software Group servers.


4) Select your preferred language and click "OK" button.
5) Accept the License Agreement and click the "Next" button.



3: SpyHunter will start scanning your system automatically right after the installation has been completed.


4: Select the found malicious files after your scanning and click “Remove” button to delete all viruses.


5: Restart your computer to apply all made changes.

Step 2: Download and run RegCure Pro to fix registry files and security bugs caused by "shellexecuteex failed code 1203" Error.

After using manual and automatic methods, you may get rid of "shellexecuteex failed code 1203" Error. if you want to optimize your PC, you can download the powerful tool RegCure Pro.
 1. Download RegCure Pro by clicking on the button below.



2. Double-click on the RegCure Pro program to open it, and then  follow the instructions to install it.

Warm tip:

If you do not have much experience to remove it manually, it is suggested that you should download the most popular antivirus program SpyHunter to help you quickly and automatically remove all possible infections from your computer.

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