Win7 x64: KB4534310 fails with "not applicable" despite all prerequisites met
Hello everyone, I'm facing a persistent issue trying to install update KB4534310 on a *Windows 7 Professional SP1 (x64)* system. Despite thorough preparation, the installer fails with "This update is not applicable to your computer." *System Configuration:* - *OS:* Windows 7 Professional Service Pack 1, build 7601 - *Architecture:* x64 - *Language:* Russian - *Registry data:* EditionID=Professional, InstallationType=Client *Prerequisites installed (in order):* 1. ✅ KB4490628 (Servicing Stack Update) 2. ✅ KB4474419 (SHA-2 Update) 3. ✅ KB4536952 (Service Stack Update) *Diagnostics & repairs performed:* - *Windows Update components reset:* Stopped services (wuauserv, cryptSvc, bits, msiserver), renamed SoftwareDistribution and catroot2 folders, restarted services. - *System file check:* sfc /scannow completed successfully - no integrity violations found. - *Registry check:* EditionID, ProductName, InstallationType all show correct values. - *Service status:* All relevant services are running properly. *The Problem:* After all preparations, the KB4534310 installer (downloaded both via Windows Update and manually from Microsoft Update Catalog) consistently gives error: *"This update is not applicable to your computer."* *Notable observation:* The C:\Windows\Logs\WindowsUpdate folder is missing on the system, even after completely resetting Windows Update components. I would greatly appreciate any help in identifying the root cause. Are there any additional logs or diagnostic tools that could pinpoint the issue? Has anyone encountered a similar situation? Thank you in advance for any suggestions!