After a lot of anecdotal reports, Microsoft acknowledged there is a problem with the Anniversary Update to Windows 10 causing PCs to freeze up. However, it says the problem is isolated to a specific PC configuration.
In a Windows forum post, Microsoft claims the freezing issue is experienced only on computers with SSDs where apps are installed on a different drive than the one where Windows 10 is installed. The obvious workaround is to move all apps to the drive where Windows 10 is located, and the company actually recommends this.
“Microsoft has received a small number of reports of Windows 10 freezing after installing the Anniversary Update on systems with the operating system stored on a solid-state drive (SSD) and apps and data stored on a separate drive. This issue does not occur when starting Windows 10 in Safe Mode,” forum moderator Basith M wrote.
He recommended signing into Windows 10 using Safe Mode to move your apps and data to the same drive as your operating system.
"We ask for your patience while we continue our investigation," he added, stating that the Windows team is looking into a fix.
Basith also noted that users who don’t want to wait for a fix can downgrade to their previous Windows version, but this option is valid only for the first 10 days after deploying the Anniversary Update.
Not an acceptable fix
I'm sorry, but this is not a feasible or acceptable fix. First, there is a reason people put apps and data on a large D: drive. SSDs are now ridiculously cheap at higher capacity, but for a long time they were not and many people had the strategy of using a SSD for the boot disk and a large capacity D: drive for apps and data. So, Microsoft is asking them to do something they may not be able to do—if they have a 120GB SSD, for example.
Second, it can be an arduous and nuisance of a process if you have many apps to move. They don't "move," you have to uninstall and reinstall them. How much time would need to be spent uninstalling, reinstalling and repatching a large number of apps and games? And then you'd have to reverse the whole process once the fix comes out.
It’s better to simply uninstall the Anniversary Update than a dozen apps and wait for a fix.