by Jack Cheen - Tech Analyst
Simple steps to remove Windows 7 Installer 1721

Different ways to Remove Windows 7 Installer 1721

  • What Causes Windows 7 Installer 1721?

    Since microsoft released windows 10 version, more and more PC users have failed to update. This may be caused be missing dll files, bad registries or outdated drivers issues. Computer drivers is oudated or damaged. Install a software in a wrong way. Pop up object error or script errors. Hard drive is full.
  • You may encounter Windows 7 Installer 1721 error messages something like as follows::

    • Windows 7 Installer 1721
    • The module Windows 7 Installer 1721 was loaded but the entry-point DllRegisterServer was not found. Make sure that Windows 7 Installer 1721 is a valid DLL or OCX file and then try again.
    • Windows could not search for new updates
    • Runtime Error XXX, A Runtime Error has occured, do you with to debug.
    • A problem has been detected and Windows has been shut down to prevent damage to your computer.
  • How to Repair Windows 7 Installer 1721 Problems?

    Windows 7 Installer 1721 problem looks like a huge disaster for your PC. While you come across Windows 7 Installer 1721 error, you had better find a good solution to fix it immediately. Or your PC might get continuous computer problems, such as Blue Screen, system crash or program freeze. In other words, it is important to troubleshoot Windows 7 Installer 1721 error.
Download Windows 7 Installer 1721 Repair Tool *Size : 4.5 MB
Estimated Download Time <60 Seconds on BroadBand

Follow the below steps on resolving Windows 7 Installer 1721 in order to finally get rid of it.


For computer novice:

If you are not good at computer skills, you had better use a good error repair utility to help you troubleshoot Windows 7 Installer 1721 issue.
Step 1: Free download SmartPCFixer.

Step 2: Run the software.



Step 3: Click Fix all to remove Windows 7 Installer 1721 issue with ease.




Notice: Windows 7 Installer 1721 still cannot be repaired, you may need to update computer drivers.

DriverTuner is highly recommended for you to update outdaged drivers in 3 steps! Scan outdated drivers by simple click the below photos, get rid of Windows 7 Installer 1721 immediately.
download drivertuner

For advanced user:

The below steps are used to repair Windows 7 Installer 1721 problem manually.


Method 1: Fixing Windows 7 Installer 1721 problem by sfc utility.

SFC is absolutely the most useful way to recover windows corrupted files. The whole process is quite easy.
Fow win 8/8.1/10 user:
Please visit here:
http://windows.microsoft.com/en-us/windows-10/using-system-file-checker-in-windows-10
For win vista/win 7 user:
To do this, click Start, type Command Prompt or cmd in the Search box, right-click Command Prompt, and then click Run as administrator. If you are prompted for an administrator password or for a confirmation, type the password, or click Allow.



At the command prompt, type the following command, and then press ENTER:sfc /scannow



Then you may received the following message. Windows Resource Protection did not find any integrity violations. (It indicates that you don't have corrupted windows files.) Windows Resource Protection could not perform the requested operation. Windows Resource Protection found corrupt files and successfully repaired them. Windows Resource Protection found corrupt files but was unable to fix some of them. (In this situation, you had better do a system restore.)

Method 2: Removing Windows 7 Installer 1721 by downloading drivers manually.

Right-click Computer on your desktop, then click Manage.



Double click Device Manager and see if there is a yellow exclamation to inform you to update drivers. Then click update drivers as the pictures below.


Method 3: Troubleshooting Windows 7 Installer 1721 by system restore.

6 Comments on "How To Get rid of Windows 7 Installer 1721?"

  • Comment by : Stefany UK
    The software did work! I used it to fix my missing mfc90u.dll successfully. Great tool for repairing missing dll files.
  • Comment by : Eleonora FR
    Après la mise à jour vers Windows 10, mon ordinateur runs plus lent et plus lent. Mes amis me recommandent de télécharger SmartPCFixer pour se débarrasser de lui. Je ne sais pas si elle est vraiment utile. Mais après l'installation de cet outil, je reçois rarement get update erreur.
  • Comment by : Mikaela
    Smartpcfixer is an amazing software for me to repair Windows 7 Installer 1721.
  • Comment by : Zandra
    I am crazy for playing games. But recently, I always come across bsod problems. SmartPCFixer support team helped me fix the blue screen error. Thanks a lot! I hope my review can help people who are hesitated to try the software.
  • Comment by : Ta
    You can give it a shot!
  • Comment by : Rickie
    Many thanks. The tool help me resolve Windows 7 Installer 1721 issue.
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Download Windows 7 Installer 1721 Repair Tool *Size : 4.5 MB
Estimated Download Time <60 Seconds on BroadBand