Solved clicking on .crdownload file crashes explorer.exe

VariousAardvark

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Reinstalled Win 7 Ultimate 64 on an SSD two days ago, and immediately installed Chrome. Twice since then, chrome had a download crash at 100% and was unable to download new files, and when I looked in the download folder there's a crashed download (eg: Unconfirmed 508279.crdownload).

The trouble is, I can't click on it. If I left click, right click or interact with it in any way (including select-all in the folder and shift-delete) explorer.exe immediately stops responding and has to be restarted. I haven't found anything via google about explorer.exe crashing when you click on a file.

In safe mode, I can click and remove it without issue, so I'm assuming it's something I've installed that has hooks into explorer, but the first instance of this happened when I was very early in the application-reinstall process. Avast, 7zip, WinRar, Dropbox and Google Drive are the primary culprits based on timing. There are other possible applications like office, and a help authoring toolsuite I use, but to my knowledge they don't hook into explorer at all, so I don't see how they could be an issue when they're not even running at the time.

Everything that is currently installed on the PC was previously installed on the same PC without this issue (same everything: the only difference is it now has more RAM and an SSD).

My powers of deduction kinda end here. Is there an easier way to identify the culprit than uninstalling things bit-by-bit and waiting to see if it strikes again? This is a business PC, and I use those programs, and I can't reliably reproduce whatever is causing Chrome to spit the dummy on that download for testing. I'm hoping there's a log file or something I can look at that will help narrow it down. Thanks in advance.
 

My Computer My Computer

At a glance

Windows 7 Ultimate x64 Enterprisei716GbGeforce 470
Computer type
PC/Desktop
Computer Manufacturer/Model Number
Custom build
OS
Windows 7 Ultimate x64 Enterprise
CPU
i7
Motherboard
Gigabyte x58A-UD5
Memory
16Gb
Graphics Card(s)
Geforce 470
Internet Speed
ADSL2
Antivirus
Avast, MalwareBytes
Browser
Chrome
SP1 and all updates applied? There is somewhere between 102 and 195 updates on top of SP1.
 

My Computer My Computer

At a glance

Windows 10 Pro X64Intel Quad Core i7-4770 @ 3.4Ghz16.0GB PC3-12800 DDR3 SDRAM 1600 MHzIntel Integrated HD Graphics
Computer type
PC/Desktop
Computer Manufacturer/Model Number
Lenovo IdeaCenter 450
OS
Windows 10 Pro X64
CPU
Intel Quad Core i7-4770 @ 3.4Ghz
Memory
16.0GB PC3-12800 DDR3 SDRAM 1600 MHz
Graphics Card(s)
Intel Integrated HD Graphics
Sound Card
Realtek HD Audio
Monitor(s) Displays
HP 22" LCD
Screen Resolution
1680 x 1050
Hard Drives
250GB Samsung EVO SATA-3 SSD
2TB Seagate ST2000DM001 SATA-2
1.5TB Seagate ST3150041AS SATA
Keyboard
Dell USB
Mouse
Lenovo USB
Internet Speed
Cable via Road Runner 3MB Upload, 30MB Download
Antivirus
Windows Defender, MBAM Pro, MBAE
Browser
Seamonkey
Other Info
UEFI/GPT
PLDS DVD-RW DH16AERSH
I thought I had, because I ran through a bunch of updates, and I believed Windows Update when it said there weren't any more updates, but I just went to check again, and SP1 isn't installed. I've tried the past 36 hours to get it to install and it won't, so when I fix THAT problem, I'll report back about whether that fixed this problem.
 

My Computer My Computer

At a glance

Windows 7 Ultimate x64 Enterprisei716GbGeforce 470
Computer type
PC/Desktop
Computer Manufacturer/Model Number
Custom build
OS
Windows 7 Ultimate x64 Enterprise
CPU
i7
Motherboard
Gigabyte x58A-UD5
Memory
16Gb
Graphics Card(s)
Geforce 470
Internet Speed
ADSL2
Antivirus
Avast, MalwareBytes
Browser
Chrome
Are you trying to install Enterprise or Ultimate?
Which one do you have the proper COA key for?

System Specs.

Computer type PC/Desktop
System Manufacturer/Model Number Custom build
OS Windows 7 Ultimate x64 Enterprise
CPU i7
Motherboard Gigabyte x58A-UD5
Memory 16Gb
 

My Computer My Computer

At a glance

Windows 10 Pro. 64/ version 1709 Windows 7 Pr...Intel i7-6800K @ 4.3Corsair Platinum 16 gig @2400EVGA GTX 1070 OC
Computer type
PC/Desktop
Computer Manufacturer/Model Number
Home made Desktop
OS
Windows 10 Pro. 64/ version 1709 Windows 7 Pro/64
CPU
Intel i7-6800K @ 4.3
Motherboard
ASUS X-99 Deluxe II
Memory
Corsair Platinum 16 gig @2400
Graphics Card(s)
EVGA GTX 1070 OC
Monitor(s) Displays
Asus 27" LED LCD/VE278Q
Screen Resolution
1920-1080 or 1280-720 HDMI
Hard Drives
INTEL SSD 730-240 Gb Sata 3.0/
PSU
EVGA Platium 1200W
Case
Phanteks Luxe Tempered Glass 8 fans/ one radiator
Cooling
XSPC/ Water Cooled CPU
Keyboard
Das 4 Professional
Mouse
Logitech M705/MX Anywhere 2-S
Internet Speed
100 mbits
Antivirus
Microsoft Security Essentials/ Malwarebytes Premium 3.0/ SAS
Browser
I.E. 11 default/Firefox/ ISP Time Warner Cable/Spectrum
Other Info
LG BluRay Burner/
Sound system-KLipsch-THX/
Icy Dock ssd Hot Swap bays.

My Computer My Computer

At a glance

Windows 10 Pro X64Intel Quad Core i7-4770 @ 3.4Ghz16.0GB PC3-12800 DDR3 SDRAM 1600 MHzIntel Integrated HD Graphics
Computer type
PC/Desktop
Computer Manufacturer/Model Number
Lenovo IdeaCenter 450
OS
Windows 10 Pro X64
CPU
Intel Quad Core i7-4770 @ 3.4Ghz
Memory
16.0GB PC3-12800 DDR3 SDRAM 1600 MHz
Graphics Card(s)
Intel Integrated HD Graphics
Sound Card
Realtek HD Audio
Monitor(s) Displays
HP 22" LCD
Screen Resolution
1680 x 1050
Hard Drives
250GB Samsung EVO SATA-3 SSD
2TB Seagate ST2000DM001 SATA-2
1.5TB Seagate ST3150041AS SATA
Keyboard
Dell USB
Mouse
Lenovo USB
Internet Speed
Cable via Road Runner 3MB Upload, 30MB Download
Antivirus
Windows Defender, MBAM Pro, MBAE
Browser
Seamonkey
Other Info
UEFI/GPT
PLDS DVD-RW DH16AERSH
Are you trying to install Enterprise or Ultimate?
Which one do you have the proper COA key for?

The install disc had both "Ultimate" and "Enterprise" printed on the label--I thought "Enterprise" referred to the fact that it's a volume license (registered via MAK key), and "Ultimate" is the edition that is installed, so I listed both. It says "Enterprise" under Control Panel > System. (Sorry for any confusion, please correct me if I'm wrong.)

How are you installing it? You can download it here:

I have tried Windows Update, and downloading the update to install manually, both in normal operating conditions, and then stopping all unnecessary services and unplugging the network cable--that resulted in a BSOD halfway through (0x0000007a / 0xC0000185 relating to ataport.SYS, but I haven't replicated that). Usually it just gets stuck with the install bar halfway through. I left it go all night, it was still the same in the morning. When I tried again this morning, it seemed to skip right to that middle bit and get stuck again, so it seems like it's not rolling it back fully, maybe?
 

My Computer My Computer

At a glance

Windows 7 Ultimate x64 Enterprisei716GbGeforce 470
Computer type
PC/Desktop
Computer Manufacturer/Model Number
Custom build
OS
Windows 7 Ultimate x64 Enterprise
CPU
i7
Motherboard
Gigabyte x58A-UD5
Memory
16Gb
Graphics Card(s)
Geforce 470
Internet Speed
ADSL2
Antivirus
Avast, MalwareBytes
Browser
Chrome
For completeness sake: I was not able to get SP1 installed, there turned out to be something very very wrong with my installation (thread here). I did a full format-reinstall with an SP1 ISO, and so far the problem has not recurred.
 

My Computer My Computer

At a glance

Windows 7 Ultimate x64 Enterprisei716GbGeforce 470
Computer type
PC/Desktop
Computer Manufacturer/Model Number
Custom build
OS
Windows 7 Ultimate x64 Enterprise
CPU
i7
Motherboard
Gigabyte x58A-UD5
Memory
16Gb
Graphics Card(s)
Geforce 470
Internet Speed
ADSL2
Antivirus
Avast, MalwareBytes
Browser
Chrome
Excellent, glad you got that fixed.
 

My Computer My Computer

At a glance

Windows 10 Pro X64Intel Quad Core i7-4770 @ 3.4Ghz16.0GB PC3-12800 DDR3 SDRAM 1600 MHzIntel Integrated HD Graphics
Computer type
PC/Desktop
Computer Manufacturer/Model Number
Lenovo IdeaCenter 450
OS
Windows 10 Pro X64
CPU
Intel Quad Core i7-4770 @ 3.4Ghz
Memory
16.0GB PC3-12800 DDR3 SDRAM 1600 MHz
Graphics Card(s)
Intel Integrated HD Graphics
Sound Card
Realtek HD Audio
Monitor(s) Displays
HP 22" LCD
Screen Resolution
1680 x 1050
Hard Drives
250GB Samsung EVO SATA-3 SSD
2TB Seagate ST2000DM001 SATA-2
1.5TB Seagate ST3150041AS SATA
Keyboard
Dell USB
Mouse
Lenovo USB
Internet Speed
Cable via Road Runner 3MB Upload, 30MB Download
Antivirus
Windows Defender, MBAM Pro, MBAE
Browser
Seamonkey
Other Info
UEFI/GPT
PLDS DVD-RW DH16AERSH
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