Also:  I tried rebooting in diagnostic mode (folder did not open) and then rebooting again in normal startup - folder reappeared.

Here are the branches of the 'Run' registry keys:

HKEY_LOCAL_MACHINE\SOFTWARE\Microsoft\Windows\CurrentVersion\Run

Windows Registry Editor Version 5.00

[HKEY_LOCAL_MACHINE\SOFTWARE\Microsoft\Windows\CurrentVersion\Run]
"UpdReg"="C:\\WINDOWS\\UpdReg.EXE"
"TkBellExe"="\"C:\\Program Files\\Common Files\\Real\\Update_OB\\realsched.exe\"  -osboot"
"RoxWatchTray"="\"C:\\Program Files\\Common Files\\Roxio Shared\\SharedCOM8\\RoxWatchTray.exe\""
"QuickTime Task"="\"C:\\Program Files\\QuickTime\\qttask.exe\" -atboottime"
"nwiz"="nwiz.exe /install"
"NvCplDaemon"="RUNDLL32.EXE C:\\WINDOWS\\System32\\NvCpl.dll,NvStartup"
"MoneyStartUp10.0"="\"C:\\Program Files\\Microsoft Money\\System\\Activation.exe\""
"MMTray"="C:\\Program Files\\MUSICMATCH\\MUSICMATCH Jukebox\\mm_tray.exe"
"MemoryCardManager"="C:\\Program Files\\Dell Photo AIO Printer 944\\memcard.exe"
"iTunesHelper"="\"C:\\Program Files\\iTunes\\iTunesHelper.exe\""
"DVDSentry"="C:\\WINDOWS\\System32\\DSentry.exe"
"dlcdmon.exe"="\"C:\\Program Files\\Dell Photo AIO Printer 944\\dlcdmon.exe\""
"diagent"="\"C:\\Program Files\\Creative\\SBLive\\Diagnostics\\diagent.exe\" startup"
"ccApp"="\"C:\\Program Files\\Common Files\\Symantec Shared\\ccApp.exe\""
"BCMSMMSG"="BCMSMMSG.exe"
"DLCDCATS"="rundll32 C:\\WINDOWS\\System32\\spool\\DRIVERS\\W32X86\\3\\DLCDtime.dll,_RunDLLEntry@16"

[HKEY_LOCAL_MACHINE\SOFTWARE\Microsoft\Windows\CurrentVersion\Run\OptionalComponents]

[HKEY_LOCAL_MACHINE\SOFTWARE\Microsoft\Windows\CurrentVersion\Run\OptionalComponents\IMAIL]
"Installed"="1"

[HKEY_LOCAL_MACHINE\SOFTWARE\Microsoft\Windows\CurrentVersion\Run\OptionalComponents\MAPI]
"Installed"="1"
"NoChange"="1"

[HKEY_LOCAL_MACHINE\SOFTWARE\Microsoft\Windows\CurrentVersion\Run\OptionalComponents\MSFS]
"Installed"="1"

HKEY_CURRENT_USER\SOFTWARE\Microsoft\Windows\CurrentVersion\Run

Windows Registry Editor Version 5.00

[HKEY_CURRENT_USER\Software\Microsoft\Windows\CurrentVersion\Run]
"NvMediaCenter"="RUNDLL32.EXE C:\\WINDOWS\\System32\\NVMCTRAY.DLL,NvTaskbarInit"
"Norton SystemWorks"="\"C:\\Program Files\\Norton SystemWorks\\cfgwiz.exe\" /GUID {05858CFD-5CC4-4ceb-AAAF-CF00BF39736A} /MODE CfgWiz"
"MoneyAgent"="\"C:\\Program Files\\Microsoft Money\\System\\Money Express.exe\""

Hi Dan,

The following is the entry you need to fix:

"MemoryCardManager"="C:\\Program Files\\Dell Photo AIO Printer 944\\memcard.exe"

Open Regedit.exe and navigate to the appropriate Run key. Then double-click MemoryCardManager and enclose the existing data within double-quotes. BTW, the article here is an example.