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Installing Java on my Windows 7 Professional 64-bit OS results in this error:

Neither the previous (8.0.60) nor the new version (8.0.66) of Java show up in the "Programs\Uninstall a program" in the control panel. Java is not detected by third-party uninstall programs either, such as Comodo program manager. In Explorer both versions' folders are in the "C:\Program Files (x86)\Java" folder. Scanned the registry for java entries and there are a slew of them.
Attempting to run javacpl.exe in the "C:\Program Files (x86)\Java\jre1.8.0_66\bin" folder results in an "Unable to run program... " error message. For that matter, any other executables, like jawa.exe, javaws.exe, etc., result in the same. Checking the java version on line at java.com shows that no java detected. Java does not show up in Qualys browser check either.
Despite the above, java shows up in the browser as enabled and it actually does work, both in IE and FF. Searched online for resolving the error 1603 and none of them worked for my system. What I have not found is how to clean the system for the current installations, both the registry and the folders. Deleting the folders is trivial, but the chances are that some registry setting causing this error. Any suggestion would be appreciated...
TIA...

Neither the previous (8.0.60) nor the new version (8.0.66) of Java show up in the "Programs\Uninstall a program" in the control panel. Java is not detected by third-party uninstall programs either, such as Comodo program manager. In Explorer both versions' folders are in the "C:\Program Files (x86)\Java" folder. Scanned the registry for java entries and there are a slew of them.
Attempting to run javacpl.exe in the "C:\Program Files (x86)\Java\jre1.8.0_66\bin" folder results in an "Unable to run program... " error message. For that matter, any other executables, like jawa.exe, javaws.exe, etc., result in the same. Checking the java version on line at java.com shows that no java detected. Java does not show up in Qualys browser check either.
Despite the above, java shows up in the browser as enabled and it actually does work, both in IE and FF. Searched online for resolving the error 1603 and none of them worked for my system. What I have not found is how to clean the system for the current installations, both the registry and the folders. Deleting the folders is trivial, but the chances are that some registry setting causing this error. Any suggestion would be appreciated...
TIA...
My Computer
- Computer type
- PC/Desktop
- Computer Manufacturer/Model Number
- Custom built at Home
- OS
- Windows 7 64-bit, Windows 8.1 64-bit, OSX El Capitan, Windows 10 (VMware)
- CPU
- Intel i5-3350P 3.1 GHz
- Motherboard
- Gigabyte GA-Z77X-UP5 TH
- Memory
- 16 GBs GSkill Sniper
- Graphics Card(s)
- Radeon HD 7850
- Sound Card
- VIA HD Audio
- Monitor(s) Displays
- Dell U2410 24"
- Screen Resolution
- 1920x1200
- Hard Drives
- 1 x Intel 520 240 GBs
1 x Seagate 1TBs SATA 2.0,
1 x Seagate 1TBs eSATA 2.0
- PSU
- Thermaltake 850W
- Case
- Antec P183
- Cooling
- Noctua NH-D14 Heatsink 2 x 120mm fans, 4 x 120mm case fans
- Keyboard
- Dell Multimedia keyboard
- Mouse
- Logitech Trackball
- Internet Speed
- 28.5 Mb/s