#2237 in 7z1900-x64 7z.exe a issue

[AtlantaKid]

In windows 10 latest update as of 12/22/2019 on ASUS TUF z270 motherboard whe I run this command

c:\Program Files\7-Zip>7z.exe a F:\backup\Win10AsusZ270\20190906 D:\20190906

it clobbers the 7z.exe file and makes it zero lenght, I tried his several times and same results, even CD to the "c:\Program Files\7-Zip>" folder and doing the command locally clobbers the file as well, as a matter of fact just issuing the 7z.eze a will clobbers the exe file. Issuing "7z.exe i" does not kill the file nore does issuing 7z.exe

I went back to vesion 7z1604-x64 and it works fine.

[Igor Pavlov]

Maybe antivirus software thinks that 7z.exe is "bad" program.
Write about installed antivirus sofwate, and exact Windows version number.
Also try another more simple command for 7z.exe for another folders ot files.

[AtlantaKid]

Windows 10 Pro Versoin OS: Windows_NT x64 10.0.17134
Anit Virus: Kaspersky Total Security 19.0.0.1088(k) -- Database 12/22/2019 5:31 AM

I think the fact that 7z1604-x64 works just fine, should take the Anti Virus out of question.

Issuing "7z.exe" in version 1900-x64 returns all options available, so Anti virus is not bothering it while I am running it without the Archive option. However running "7z.exe a" in version 7z11900-x64 also collbers the file.

Is there any debug I can help you with?

More info about my System

Language setting: en
Operating system: Windows 10 - Business Edition
Version: 10.0.17134
Application architecture: x64
System architecture: x64
Logical processor count: 8
Processor speed: 4.2 GHz
Built-in memory: 16250.5 MB
Real memory available to Lightroom: 16250.5 MB
Real memory used by Lightroom: 1349.9 MB (8.3%)
Virtual memory used by Lightroom: 1433.3 MB
GDI objects count: 604
USER objects count: 2598
Process handles count: 1316
Memory cache size: 530.7MB / 3832.0MB (13.8%)
Maximum thread count used by Camera Raw: 5
Camera Raw SIMD optimization: SSE2,AVX,AVX2
Camera Raw virtual memory: 728MB / 8125MB (8%)
System DPI setting: 96 DPI
Desktop composition enabled: Yes
Displays: 1) 2560x1080
Input types: Multitouch: No, Integrated touch: No, Integrated pen: No, External touch: No, External pen: No, Keyboard: No

Graphics Processor Info:
Intel(R) HD Graphics 630

Check OpenGL support: Passed
Vendor: Intel
Version: 3.3.0 - Build 26.20.100.7263
Renderer: Intel(R) HD Graphics 630
LanguageVersion: 3.30 - Build 26.20.100.7263

Adapter #1: Vendor : 8086
Device : 5912
Subsystem : 872f1043
Revision : 4
Video Memory : 128
Adapter #2: Vendor : 1414
Device : 8c
Subsystem : 0
Revision : 0
Video Memory : 0
AudioDeviceIOBlockSize: 1024
AudioDeviceName: Speakers (Realtek High Definition Audio)
AudioDeviceNumberOfChannels: 2
AudioDeviceSampleRate: 48000
Build: Uninitialized
Direct2DEnabled: false
GL_ACCUM_ALPHA_BITS: 16
GL_ACCUM_BLUE_BITS: 16
GL_ACCUM_GREEN_BITS: 16
GL_ACCUM_RED_BITS: 16
GL_ALPHA_BITS: 8
GL_BLUE_BITS: 8
GL_DEPTH_BITS: 24
GL_GREEN_BITS: 8
GL_MAX_3D_TEXTURE_SIZE: 2048
GL_MAX_TEXTURE_SIZE: 16384
GL_MAX_TEXTURE_UNITS: 8
GL_MAX_VIEWPORT_DIMS: 16384,16384
GL_RED_BITS: 8
GL_RENDERER: Intel(R) HD Graphics 630
GL_SHADING_LANGUAGE_VERSION: 4.60 - Build 26.20.100.7263
GL_STENCIL_BITS: 8
GL_VENDOR: Intel
GL_VERSION: 4.6.0 - Build 26.20.100.7263
GPUDeviceEnabled: false
OGLEnabled: true
GL_EXTENSIONS: GL_3DFX_texture_compression_FXT1 GL_AMD_depth_clamp_separate GL_AMD_vertex_shader_layer GL_AMD_vertex_shader_viewport_index GL_ARB_ES2_compatibility GL_ARB_ES3_1_compatibility GL_ARB_ES3_compatibility GL_ARB_arrays_of_arrays GL_ARB_base_instance GL_ARB_bindless_texture GL_ARB_blend_func_extended GL_ARB_buffer_storage GL_ARB_cl_event GL_ARB_clear_buffer_object GL_ARB_clear_texture GL_ARB_clip_control GL_ARB_color_buffer_float GL_ARB_compatibility GL_ARB_compressed_texture_pixel_storage GL_ARB_compute_shader GL_ARB_conditional_render_inverted GL_ARB_conservative_depth GL_ARB_copy_buffer GL_ARB_copy_image GL_ARB_cull_distance GL_ARB_debug_output GL_ARB_depth_buffer_float GL_ARB_depth_clamp GL_ARB_depth_texture GL_ARB_derivative_control GL_ARB_direct_state_access GL_ARB_draw_buffers GL_ARB_draw_buffers_blend GL_ARB_draw_elements_base_vertex GL_ARB_draw_indirect GL_ARB_draw_instanced GL_ARB_enhanced_layouts GL_ARB_explicit_attrib_location GL_ARB_explicit_uniform_location GL_ARB_fragment_coord_conventions GL_ARB_fragment_layer_viewport GL_ARB_fragment_program GL_ARB_fragment_program_shadow GL_ARB_fragment_shader GL_ARB_fragment_shader_interlock GL_ARB_framebuffer_no_attachments GL_ARB_framebuffer_object GL_ARB_framebuffer_sRGB GL_ARB_geometry_shader4 GL_ARB_get_program_binary GL_ARB_get_texture_sub_image GL_ARB_gl_spirv GL_ARB_gpu_shader5 GL_ARB_gpu_shader_fp64 GL_ARB_half_float_pixel GL_ARB_half_float_vertex GL_ARB_indirect_parameters GL_ARB_instanced_arrays GL_ARB_internalformat_query GL_ARB_internalformat_query2 GL_ARB_invalidate_subdata GL_ARB_map_buffer_alignment GL_ARB_map_buffer_range GL_ARB_multi_bind GL_ARB_multi_draw_indirect GL_ARB_multisample GL_ARB_multitexture GL_ARB_occlusion_query GL_ARB_occlusion_query2 GL_ARB_pipeline_statistics_query GL_ARB_pixel_buffer_object GL_ARB_point_parameters GL_ARB_point_sprite GL_ARB_polygon_offset_clamp GL_ARB_post_depth_coverage GL_ARB_program_interface_query GL_ARB_provoking_vertex GL_ARB_query_buffer_object GL_ARB_robust_buffer_access_behavior GL_ARB_robustness GL_ARB_robustness_isolation GL_ARB_sample_shading GL_ARB_sampler_objects GL_ARB_seamless_cube_map GL_ARB_seamless_cubemap_per_texture GL_ARB_separate_shader_objects GL_ARB_shader_atomic_counter_ops GL_ARB_shader_atomic_counters GL_ARB_shader_bit_encoding GL_ARB_shader_draw_parameters GL_ARB_shader_group_vote GL_ARB_shader_image_load_store GL_ARB_shader_image_size GL_ARB_shader_objects GL_ARB_shader_precision GL_ARB_shader_stencil_export GL_ARB_shader_storage_buffer_object GL_ARB_shader_subroutine GL_ARB_shader_texture_image_samples GL_ARB_shading_language_100 GL_ARB_shading_language_420pack GL_ARB_shading_language_packing GL_ARB_shadow GL_ARB_spirv_extensions GL_ARB_stencil_texturing GL_ARB_sync GL_ARB_tessellation_shader GL_ARB_texture_barrier GL_ARB_texture_border_clamp GL_ARB_texture_buffer_object GL_ARB_texture_buffer_object_rgb32 GL_ARB_texture_buffer_range GL_ARB_texture_compression GL_ARB_texture_compression_bptc GL_ARB_texture_compression_rgtc GL_ARB_texture_cube_map GL_ARB_texture_cube_map_array GL_ARB_texture_env_add GL_ARB_texture_env_combine GL_ARB_texture_env_crossbar GL_ARB_texture_env_dot3 GL_ARB_texture_filter_anisotropic GL_ARB_texture_float GL_ARB_texture_gather GL_ARB_texture_mirror_clamp_to_edge GL_ARB_texture_mirrored_repeat GL_ARB_texture_multisample GL_ARB_texture_non_power_of_two GL_ARB_texture_query_levels GL_ARB_texture_query_lod GL_ARB_texture_rectangle GL_ARB_texture_rg GL_ARB_texture_rgb10_a2ui GL_ARB_texture_stencil8 GL_ARB_texture_storage GL_ARB_texture_storage_multisample GL_ARB_texture_swizzle GL_ARB_texture_view GL_ARB_timer_query GL_ARB_transform_feedback2 GL_ARB_transform_feedback3 GL_ARB_transform_feedback_instanced GL_ARB_transform_feedback_overflow_query GL_ARB_transpose_matrix GL_ARB_uniform_buffer_object GL_ARB_vertex_array_bgra GL_ARB_vertex_array_object GL_ARB_vertex_attrib_64bit GL_ARB_vertex_attrib_binding GL_ARB_vertex_buffer_object GL_ARB_vertex_program GL_ARB_vertex_shader GL_ARB_vertex_type_10f_11f_11f_rev GL_ARB_vertex_type_2_10_10_10_rev GL_ARB_viewport_array GL_ARB_window_pos GL_ATI_separate_stencil GL_EXT_abgr GL_EXT_bgra GL_EXT_blend_color GL_EXT_blend_equation_separate GL_EXT_blend_func_separate GL_EXT_blend_minmax GL_EXT_blend_subtract GL_EXT_clip_volume_hint GL_EXT_compiled_vertex_array GL_EXT_direct_state_access GL_EXT_draw_buffers2 GL_EXT_draw_range_elements GL_EXT_fog_coord GL_EXT_framebuffer_blit GL_EXT_framebuffer_multisample GL_EXT_framebuffer_object GL_EXT_geometry_shader4 GL_EXT_gpu_program_parameters GL_EXT_gpu_shader4 GL_EXT_multi_draw_arrays GL_EXT_packed_depth_stencil GL_EXT_packed_float GL_EXT_packed_pixels GL_EXT_polygon_offset_clamp GL_EXT_rescale_normal GL_EXT_secondary_color GL_EXT_separate_specular_color GL_EXT_shader_framebuffer_fetch GL_EXT_shader_integer_mix GL_EXT_shadow_funcs GL_EXT_stencil_two_side GL_EXT_stencil_wrap GL_EXT_texture3D GL_EXT_texture_array GL_EXT_texture_compression_s3tc GL_EXT_texture_edge_clamp GL_EXT_texture_env_add GL_EXT_texture_env_combine GL_EXT_texture_filter_anisotropic GL_EXT_texture_integer GL_EXT_texture_lod_bias GL_EXT_texture_rectangle GL_EXT_texture_sRGB GL_EXT_texture_sRGB_decode GL_EXT_texture_shared_exponent GL_EXT_texture_snorm GL_EXT_texture_storage GL_EXT_texture_swizzle GL_EXT_timer_query GL_EXT_transform_feedback GL_IBM_texture_mirrored_repeat GL_INTEL_conservative_rasterization GL_INTEL_fragment_shader_ordering GL_INTEL_framebuffer_CMAA GL_INTEL_map_texture GL_INTEL_multi_rate_fragment_shader GL_INTEL_performance_query GL_KHR_blend_equation_advanced GL_KHR_blend_equation_advanced_coherent GL_KHR_context_flush_control GL_KHR_debug GL_KHR_no_error GL_KHR_texture_compression_astc_hdr GL_KHR_texture_compression_astc_ldr GL_NV_blend_square GL_NV_conditional_render GL_NV_primitive_restart GL_NV_texgen_reflection GL_SGIS_generate_mipmap GL_SGIS_texture_edge_clamp GL_SGIS_texture_lod GL_SUN_multi_draw_arrays GL_WIN_swap_hint WGL_EXT_swap_control

[AtlantaKid]

I checked AV and the only thing it reports about 7z is "allowing access"
From Kaspersky AV

---

23.22.12.2019 10.01.28 Application added to the Trusted group 7-Zip Console Application: 7-Zip Console Reason: KSN information Application path: C:\Program Files\7-Zip\7z.exe Time: 12/22/2019 10:01 AM

[Igor Pavlov]

Antivirus software can know about some revisions of 7-Zip, and they could ban some another revisions, if they see some unusual activity. Maybe internal anti-malware software in Windows can do such stange things.
But if they do it, another users also must see it.
But there are no reports about it, except of your report.
Mayby there is some anti-malware logs in system?

Please try more simple commands:

7z l a.7z
7z x a.7z
7z h c:\1.txt
7z a c:\folder2\a.7z c:\1.txt
7z a c:\folder2\b.7z c:\folder\

Do these command work ok?

[AtlantaKid]

Here you go

Microsoft Windows [Version 10.0.17134.1184]
(c) 2018 Microsoft Corporation. All rights reserved.

C:\Windows\system32>cd "\Program Files\7-Zip"

C:\Program Files\7-Zip>dir 7.
Volume in drive C has no label.
Volume Serial Number is 4C68-5945

Directory of C:\Program Files\7-Zip

02/20/2019 06:00 AM 108,074 7-zip.chm
02/21/2019 11:00 AM 78,336 7-zip.dll
02/21/2019 11:00 AM 50,688 7-zip32.dll
02/21/2019 11:00 AM 1,679,360 7z.dll
02/21/2019 11:00 AM 468,992 7z.exe
02/21/2019 11:00 AM 205,824 7z.sfx
02/21/2019 11:00 AM 186,880 7zCon.sfx
02/21/2019 11:00 AM 867,840 7zFM.exe
02/21/2019 11:00 AM 581,632 7zG.exe
9 File(s) 4,227,626 bytes
0 Dir(s) 285,247,508,480 bytes free

C:\Program Files\7-Zip>copy 7z.exe 7z.bak
1 file(s) copied.

C:\Program Files\7-Zip>7z l a.7z

7-Zip 19.00 (x64) : Copyright (c) 1999-2018 Igor Pavlov : 2019-02-21

Scanning the drive for archives:
1 file, 126853 bytes (124 KiB)

Listing archive: a.7z

--
Path = a.7z
Type = 7z
Physical Size = 126853
Headers Size = 258
Method = LZMA2:192k
Solid = +
Blocks = 1

Date Time Attr Size Compressed Name

---

2019-11-21 15:06:22 D.... 0 0 TPMS Crossfire
2019-11-21 15:06:21 ..H.A 59 126595 TPMS Crossfire.picasa.ini
2019-11-21 15:06:21 ....A 47295 TPMS Crossfire\1-IMG_4421a.JPG
2019-11-21 15:06:22 ....A 41158 TPMS Crossfire\2-IMG_4465a.JPG
2019-11-21 15:06:22 ....A 43413 TPMS Crossfire\3-IMG_4468a.JPG

---

2019-11-21 15:06:22 131925 126595 4 files, 1 folders

C:\Program Files\7-Zip>7z x a.7z

7-Zip 19.00 (x64) : Copyright (c) 1999-2018 Igor Pavlov : 2019-02-21

Scanning the drive for archives:
1 file, 126853 bytes (124 KiB)

Extracting archive: a.7z

Path = a.7z
Type = 7z
Physical Size = 126853
Headers Size = 258
Method = LZMA2:192k
Solid = +
Blocks = 1

Everything is Ok

Folders: 1
Files: 4
Size: 131925
Compressed: 126853

C:\Program Files\7-Zip>7z h c:\1.txt

7-Zip 19.00 (x64) : Copyright (c) 1999-2018 Igor Pavlov : 2019-02-21

Scanning
1 file, 1064 bytes (2 KiB)

CRC32 Size Name

---

4FB54B84 1064 1.txt

---

4FB54B84 1064

Size: 1064

CRC32 for data: 4FB54B84

Everything is Ok

C:\Program Files\7-Zip>7z a c:\tmp\a.7z c:\1.txt

7-Zip 19.00 (x64) : Copyright (c) 1999-2018 Igor Pavlov : 2019-02-21

Open archive: c:\tmp\a.7z

Path = c:\tmp\a.7z
Type = 7z
Physical Size = 126853
Headers Size = 258
Method = LZMA2:192k
Solid = +
Blocks = 1

Scanning the drive:
1 file, 1064 bytes (2 KiB)

Updating archive: c:\tmp\a.7z

Keep old data in archive: 1 folder, 4 files, 131925 bytes (129 KiB)
Add new data to archive: 1 file, 1064 bytes (2 KiB)

Files read from disk: 1
Archive size: 127114 bytes (125 KiB)
Everything is Ok

C:\Program Files\7-Zip>mkdir c:\junk

C:\Program Files\7-Zip>7z a c:\tmp\b.7z c:\junk\

7-Zip 19.00 (x64) : Copyright (c) 1999-2018 Igor Pavlov : 2019-02-21

Open archive: c:\tmp\b.7z

Path = c:\tmp\b.7z
Type = 7z
Physical Size = 126853
Headers Size = 258
Method = LZMA2:192k
Solid = +
Blocks = 1

Scanning the drive:
1 folder, 0 files, 0 bytes

Updating archive: c:\tmp\b.7z

Keep old data in archive: 1 folder, 4 files, 131925 bytes (129 KiB)
Add new data to archive: 1 folder, 0 files, 0 bytes

Files read from disk: 0
Archive size: 126871 bytes (124 KiB)
Everything is Ok

C:\Program Files\7-Zip>

[Igor Pavlov]

So these commands do not clobber 7z.exe?
Then try to increase the complexity of commands.
And try to find the command with minimal complexity (and minimal file data set), that clobbers 7z.exe.
That way you will see the conditions (some trigger) for some external software that clobbers 7-Zip in your system.

[Shell]

You can find out which software clobbers 7z.exe by logging filesystem activity. For example, Procmon from Sysinternals can do that.

[AtlantaKid]

Thank you for your attension to this issue and You can close this ticket, since after Uninstalling the 1604 version and removing the 7-zip folder and installing 1900 version, I can not reproduce the issue.
Also yesterday the Kaspersky software autoupdated itself to version 20.0.14.1085(e) automatically, which may had something to do with this.
I also downloaded ProcessMonitor tool (aka procmon.exe) and have it handy, and if this happens again, I will run it and watch see which process is collabering the file.

Thanks.