I had read a few threads about ........
1. Error 87
2.That it is not applicable to Win 7.
Since I have 3 machines with different versions of OS, I decided to check it out.
On each machine, I ran sfc /scannow, then after that, dism.
I found a thing or 2 perplexing.....
On my Dell laptop running Win8.1.1 Pro, sfc found no intergrety violation, but dism said corruption was repaired successfully. ( see screenshot #1.)
On my Acer Iconia W3-810 tablet running Win 8.1, sfc found no integrity violation, but dism returned with error 87, restore health option is not recognized.( see screenshot #2).
Same result applies to my Acer Aspire Win 7 Home Premium SP1.(see screenshot #3).
Can someone clearify for me ?
I might be able to explain screenshot #1. A few days ago, sfc was unable to repair corrupt files. Dism did the repair job for me.
But, most importantly why the error code 87 ?
Screenshot #1 from Dell laptop, Win 8.1.1Pro
[ATTACH type="full" align="right" alt="An AI-generated image of 'About Dism /online /cleanup-image /restore-health'. First image: Successful system scan and DISM restore operation without errors.
Second image: System scan successful but DISM restore-health option not recognized (Error 87).
Third image: System scan successful but DISM restore-health option not recognized (Error 87) with log file location shown." alt="1: System scan completed with no integrity violations and successful component store repair.
2: System scan OK but 'restore-health' option not recognized, causing error 87.
3: Same error 87 on older Windows version; restore-health option unsupported here." alt="The images show command prompts running sfc /scannow and DISM with varying results on Windows versions."]28081[/ATTACH]
Screenshot#2 from Acer Iconia tablet, Win 8.1
[ATTACH type="full" align="right" alt="An AI-generated image of 'About Dism /online /cleanup-image /restore-health'. First image: Successful system scan and DISM restore operation without errors.
Second image: System scan successful but DISM restore-health option not recognized (Error 87).
Third image: System scan successful but DISM restore-health option not recognized (Error 87) with log file location shown." alt="1: System scan completed with no integrity violations and successful component store repair.
2: System scan OK but 'restore-health' option not recognized, causing error 87.
3: Same error 87 on older Windows version; restore-health option unsupported here." alt="The images show command prompts running sfc /scannow and DISM with varying results on Windows versions."]28082[/ATTACH]
Screenshot#3 from Win 7 Home Premium
[ATTACH type="full" align="right" alt="An AI-generated image of 'About Dism /online /cleanup-image /restore-health'. First image: Successful system scan and DISM restore operation without errors.
Second image: System scan successful but DISM restore-health option not recognized (Error 87).
Third image: System scan successful but DISM restore-health option not recognized (Error 87) with log file location shown." alt="1: System scan completed with no integrity violations and successful component store repair.
2: System scan OK but 'restore-health' option not recognized, causing error 87.
3: Same error 87 on older Windows version; restore-health option unsupported here." alt="The images show command prompts running sfc /scannow and DISM with varying results on Windows versions."]28083[/ATTACH]