After being unused for a couple of months, my computer now shows a Windows installation screen that reaches 64%, then shuts down and repeats the loop. What troubleshooting steps are worth trying before reinstalling Windows?
Windows keeps stopping at 64% and restarting. What should I try?
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Try to reach Windows Recovery Environment first. Interrupt startup by powering the computer off as it begins loading, and repeat a few times. If recovery appears, try Startup Repair, then consider uninstalling a recent update or using System Restore if a restore point is available.
If recovery never opens or those options fail, a Windows installer USB can be used for repair or reinstall. Back up important files before choosing an option that may erase the drive.
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Before assuming the computer is dead, check the basics: make sure the power cable is secure, disconnect unnecessary USB devices, and note whether it fully powers off or simply restarts. That detail can help distinguish a power problem from Windows getting stuck during an update.
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