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Windows 7 SP1 Installation error: SXS_Assembly issue

post #1 of 5
Thread Starter 
Was attempting to install Windows 7 Service Pack 1 on my grandparents desktop in the few hours that I was there, and I kept running into this error

Error: ERROR_SXS_ASSEMBLY_MISSING (0x80073701)

I can't look it up on my phone or laptop as the hotel wireless is slow, and I am on the road for most of the day in between for the next two days.

I was wondering if anyone had a fix or knew of a fix for this issue, otherwise, I am going to backup their files, restore the system using the OEM discs, and then just install the Service Pack.

Thanks for anything you guys give me in advance.
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CoolingOSMonitorMonitor
Corsair H70 Windows 7 Professional x64 ASUS VH242H 23" Monitor ASUS VH242H 23" Monitor 
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post #2 of 5
Thread Starter 
Seriously, no one has any help, experience, or has occurred this before?
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Hard DriveHard DriveHard DriveOptical Drive
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CoolingOSMonitorMonitor
Corsair H70 Windows 7 Professional x64 ASUS VH242H 23" Monitor ASUS VH242H 23" Monitor 
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CPUMotherboardGraphicsGraphics
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Hard DriveHard DriveHard DriveOptical Drive
Seagate Hard Drive Seagate Hard Drive Crucial M4 SSD Sony Optiarc 
CoolingOSMonitorMonitor
Corsair H70 Windows 7 Professional x64 ASUS VH242H 23" Monitor ASUS VH242H 23" Monitor 
MonitorKeyboardPowerCase
Samsung SyncMaster 906BW 19" Monitor Logitech G15 Corsair 1K PSU Lian-Li 70A 
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post #3 of 5
It's referring to some missing / corrupt files possibly in the WINSXS folder which causes the SP to rollback. The remedy is usually an in place upgrade.
post #4 of 5
Thread Starter 
I know, I am just hoping there is any other way around it, if anyone ever experienced this specific issue and managed to get around that bit of an inplace upgrade.

Trying to avoid a hassle of 6 hours. I think honestly, at this point, it would be easier to re-install the OS that was on the machine, and hope that solves the problem, because, apparently, I can't System Restore?
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AMD Phenom II X6 1090T Crosshair IV Formula GTX 560 GTX 580 
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G. Skill F3-12800CL6D-4GBPI G. Skill F3-12800CL6D-4GBPI G. Skill F3-12800CL6D-4GBPI  G. Skill F3-12800CL6D-4GBPI 
Hard DriveHard DriveHard DriveOptical Drive
Seagate Hard Drive Seagate Hard Drive Crucial M4 SSD Sony Optiarc 
CoolingOSMonitorMonitor
Corsair H70 Windows 7 Professional x64 ASUS VH242H 23" Monitor ASUS VH242H 23" Monitor 
MonitorKeyboardPowerCase
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CPUMotherboardGraphicsGraphics
AMD Phenom II X6 1090T Crosshair IV Formula GTX 560 GTX 580 
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G. Skill F3-12800CL6D-4GBPI G. Skill F3-12800CL6D-4GBPI G. Skill F3-12800CL6D-4GBPI  G. Skill F3-12800CL6D-4GBPI 
Hard DriveHard DriveHard DriveOptical Drive
Seagate Hard Drive Seagate Hard Drive Crucial M4 SSD Sony Optiarc 
CoolingOSMonitorMonitor
Corsair H70 Windows 7 Professional x64 ASUS VH242H 23" Monitor ASUS VH242H 23" Monitor 
MonitorKeyboardPowerCase
Samsung SyncMaster 906BW 19" Monitor Logitech G15 Corsair 1K PSU Lian-Li 70A 
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post #5 of 5
Well an in place upgrade is just a repair install. Should not, if successful, modify anything except repair the core files and some theme settings still less than 6 hours. Good luck...
Edited by opensesame - 4/23/11 at 11:22pm
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