Most of the time when installing MS Office 2010 over an older version of MS Office (2003, 2007) you might get the following error message during the installation.
The Windows Installer service cannot update one or more protected Windows files.
This error also not returns any error code. An error code tells more about the error message but unfortunately, this error message doesn’t give more information about the problem. Here, in this article, I will tell all the possible solutions of fixing MS Office Installation Error.
There are lots of reasons that can fire Office Installation Error and the fixes are different based of the cause. Here, I am explaining the most suitable fixing techniques that can surely resolve a problem.
Method 1: Fix using Advanced System Repair Tool
Mostly this error occurs when there are missing system files, corrupted registry entries, outdated driver and software and if there is any malware in your PC.
Solution: You must use Advanced System Repair Tool to fix all these areas in one click. By cleaning and boosting PC Speed using System Optimizer tool, most probably you will not face any problem when installing MS Office.
Method 2: All Time Favourite Solution: Restart your Computer
Yes. Restarting a computer can fix 50% of PC Problems without any reason. You must restart your computer and then try to install MS Office 2013/2010 or 2007. Sometimes, if you have installed a program or driver before installing office, it requires a PC restart. Without restarting your PC if you try to install MS Office then most probably you will get the installation error.
Method 3: Update Windows and Drivers
If you have not updated windows then most probably the required service pack is not available and the new installation of MS Office may get end during installation. You must make sure that your Windows OS and all the installed driver is updated properly.
Method 4: Rename Microsoft Help folder
This technique also works like charm. Follow the given steps.
Step 1: Press Windows Key + R to open Run Windows.
Step 2: Type %ProgramData% in run window and press OK
Step 3: Search for Microsoft Help folder and rename into Microsoft Help.Old
Step 4: Now try to Install Microsoft Office 2007 or Microsoft Office Professional 2010/2013
Method 5: Install MS Office with Administrative Account
The main reason behind MS Office Installation error is MS Office Setup is unable to write data in ProgramData folder. This is because either your account doesn’t have administrative privilege to install the application. Reboot your PC Administrator Mode and then try to install office.
Step 1: Press Windows Key + R and open Run Dialog Box.
Step 2: Type lusrmgr.msc and press OK.
Step 3: Double click on Users > Right click on Administrator > Select Properties.
Step 4: Uncheck Account is Disabled and clicks Apply and OK.
Step 5: Reboot PC. Now, you will get Administrative icon at login screen.
Method 6: Install MS Office in Clean Boot Mode.
When you boot your PC in Clean Boot Mode, the PC will only load the basic and necessary drivers. In clean boot mode, try to install MS Office and most probably your office will get installed without any error. Here is the detailed guide using step by step (picture) about How to start PC in Clean Boot Mode.
Clean Boot Startup to Windows 7/8/10 – Step by Step
This article contains information about how to fix Microsoft Office Installation Error or Microsoft Office Professional Plus 2010 encounter an error. Hope, this article will help you to fix the MS Office Installation Error.