WARNING! The following fix is specific to the user's system in this thread only. No one else should follow these instructions, as it could damage your system.
Thank you very much for your reply. Here is the contents of the file after I've launched SFCFix;
SFCFix version 3.0.2.1 by niemiro.
Start time: 2020-04-29 04:45:53.596
Microsoft Windows 7 Service Pack 1 - amd64
Using .zip script file at C:\Users\User\Desktop\SFCFix.zip [0]
PowerCopy::
Successfully took permissions for file or folder C:\Windows\winsxs\Manifests\amd64_microsoft-windows-gwx-task_31bf3856ad364e35_6.1.7601.23538_none_ba618baef45f937a.manifest
Successfully took permissions for file or folder C:\Windows\winsxs\Manifests\amd64_microsoft-windows-gwx_31bf3856ad364e35_6.1.7601.23538_none_0f162766860b858c.manifest
Successfully took permissions for file or folder C:\Windows\winsxs\Manifests\wow64_microsoft-windows-gwx_31bf3856ad364e35_6.1.7601.23538_none_196ad1b8ba6c4787.manifest
Successfully copied file C:\Users\User\AppData\Local\niemiro\Archive\amd64_microsoft-windows-gwx-task_31bf3856ad364e35_6.1.7601.23538_none_ba618baef45f937a.manifest to C:\Windows\winsxs\Manifests\amd64_microsoft-windows-gwx-task_31bf3856ad364e35_6.1.7601.23538_none_ba618baef45f937a.manifest.
Successfully copied file C:\Users\User\AppData\Local\niemiro\Archive\amd64_microsoft-windows-gwx_31bf3856ad364e35_6.1.7601.23538_none_0f162766860b858c.manifest to C:\Windows\winsxs\Manifests\amd64_microsoft-windows-gwx_31bf3856ad364e35_6.1.7601.23538_none_0f162766860b858c.manifest.
Successfully copied file C:\Users\User\AppData\Local\niemiro\Archive\wow64_microsoft-windows-gwx_31bf3856ad364e35_6.1.7601.23538_none_196ad1b8ba6c4787.manifest to C:\Windows\winsxs\Manifests\wow64_microsoft-windows-gwx_31bf3856ad364e35_6.1.7601.23538_none_196ad1b8ba6c4787.manifest.
Successfully restored ownership for C:\Windows\winsxs\Manifests\amd64_microsoft-windows-gwx-task_31bf3856ad364e35_6.1.7601.23538_none_ba618baef45f937a.manifest
Successfully restored permissions on C:\Windows\winsxs\Manifests\amd64_microsoft-windows-gwx-task_31bf3856ad364e35_6.1.7601.23538_none_ba618baef45f937a.manifest
Successfully restored ownership for C:\Windows\winsxs\Manifests\amd64_microsoft-windows-gwx_31bf3856ad364e35_6.1.7601.23538_none_0f162766860b858c.manifest
Successfully restored permissions on C:\Windows\winsxs\Manifests\amd64_microsoft-windows-gwx_31bf3856ad364e35_6.1.7601.23538_none_0f162766860b858c.manifest
Successfully restored ownership for C:\Windows\winsxs\Manifests\wow64_microsoft-windows-gwx_31bf3856ad364e35_6.1.7601.23538_none_196ad1b8ba6c4787.manifest
Successfully restored permissions on C:\Windows\winsxs\Manifests\wow64_microsoft-windows-gwx_31bf3856ad364e35_6.1.7601.23538_none_196ad1b8ba6c4787.manifest
PowerCopy:: directive completed successfully.
Successfully processed all directives.
Failed to generate a complete zip file. Upload aborted.
SFCFix version 3.0.2.1 by niemiro has completed.
Currently storing 3 datablocks.
Finish time: 2020-04-29 04:49:25.194
Script hash: utd7qCqKVcGZ0oMncZT0WxoxBxbj/P4JT0YAtiVLR0k=
----------------------EOF-----------------------
I've run sfc /scannow once again. It displays "Windows Resource Protection did not find any integrity violations". Thank you very much, you've been a huge help.