These don't appear to be serious, but several programs (notably photoshop, illustrator) installed with similar errors.

1) are these a big deal/something to worry about?

2) what can I do to fix these types of errors?

a full listing of the errors from one recent installation:

Exit Code: 6 Please see specific errors and warnings below for troubleshooting. For example,  ERROR: DF012, DF024 ... WARNING: DF054, DW016 ...   -------------------------------------- Summary --------------------------------------  - 0 fatal error(s), 35 error(s), 9 warning(s)    WARNING: DW016: NOTE: Cannot set action to the payload {B8ADDCBD-30D9-4366-AE25-089CEF76C8E1} Suite Shared Configuration CS6 3.0.0.0 as it is already upgraded by the payload {8706963D-5F48-47CC-998B-DAB70B089DB8} Suite Shared Configuration CS6 3.0.0.0  WARNING: DW016: NOTE: Cannot set action to the payload {B8ADDCBD-30D9-4366-AE25-089CEF76C8E1} Suite Shared Configuration CS6 3.0.0.0 as it is already upgraded by the payload {8706963D-5F48-47CC-998B-DAB70B089DB8} Suite Shared Configuration CS6 3.0.0.0  WARNING: DW016: NOTE: Cannot set action to the payload {B8ADDCBD-30D9-4366-AE25-089CEF76C8E1} Suite Shared Configuration CS6 3.0.0.0 as it is already upgraded by the payload {8706963D-5F48-47CC-998B-DAB70B089DB8} Suite Shared Configuration CS6 3.0.0.0  WARNING: DW016: NOTE: Cannot set action to the payload {B8ADDCBD-30D9-4366-AE25-089CEF76C8E1} Suite Shared Configuration CS6 3.0.0.0 as it is already upgraded by the payload {8706963D-5F48-47CC-998B-DAB70B089DB8} Suite Shared Configuration CS6 3.0.0.0  WARNING: DW016: NOTE: Cannot set action to the payload {B8ADDCBD-30D9-4366-AE25-089CEF76C8E1} Suite Shared Configuration CS6 3.0.0.0 as it is already upgraded by the payload {8706963D-5F48-47CC-998B-DAB70B089DB8} Suite Shared Configuration CS6 3.0.0.0  WARNING: DW016: NOTE: Cannot set action to the payload {B8ADDCBD-30D9-4366-AE25-089CEF76C8E1} Suite Shared Configuration CS6 3.0.0.0 as it is already upgraded by the payload {8706963D-5F48-47CC-998B-DAB70B089DB8} Suite Shared Configuration CS6 3.0.0.0  WARNING: DW016: NOTE: Cannot set action to the payload {B8ADDCBD-30D9-4366-AE25-089CEF76C8E1} Suite Shared Configuration CS6 3.0.0.0 as it is already upgraded by the payload {8706963D-5F48-47CC-998B-DAB70B089DB8} Suite Shared Configuration CS6 3.0.0.0  WARNING: DW016: NOTE: Cannot set action to the payload {B8ADDCBD-30D9-4366-AE25-089CEF76C8E1} Suite Shared Configuration CS6 3.0.0.0 as it is already upgraded by the payload {8706963D-5F48-47CC-998B-DAB70B089DB8} Suite Shared Configuration CS6 3.0.0.0  ----------- Payload: {0C4E7429-E920-4125-980E-029A87AE0A4D} AdobeColorCommonSetCMYK CS6 4.0.0.0 -----------  WARNING: DF054: Unable to read Adobe file version for file path 'C:\Program Files (x86)\Common Files\Adobe\Color\Profiles\Recommended\USSheetfedCoated.icc'(Seq 14)  ERROR: DF012: Unable to find file(Seq 14)  ERROR: DF024: Unable to preserve original file at "C:\Program Files (x86)\Common Files\Adobe\Color\Profiles\Recommended\USSheetfedCoated.icc" Error 32 The process cannot access the file because it is being used by another process.(Seq 14)  ERROR: DW063: Command ARKDeleteFileCommand failed.(Seq 14)    ERROR: DW050: The following payload errors were found during install:  ERROR: DW050:  - Adobe Bridge CS6 (64 Bit): Install failed  ERROR: DW050:  - AdobeColorCommonSetCMYK CS6: Install failed  ERROR: DW050:  - AdobeColorJA CS6: Install failed  ERROR: DW050:  - Adobe Hunspell Linguistics Plugin CS6 x64: Install failed  ERROR: DW050:  - Required Common Fonts Installation: Install failed  ERROR: DW050:  - Adobe CSXS Infrastructure CS6: Install failed  ERROR: DW050:  - AdobeColorEU CS6: Install failed  ERROR: DW050:  - Required Common Fonts Installation x64: Install failed  ERROR: DW050:  - AdobeIdeaPluginCS6 x64: Install failed  ERROR: DW050:  - Adobe Hunspell Linguistics Plugin CS6: Install failed  ERROR: DW050:  - Adobe WinSoft Linguistics Plugin CS6 x64: Install failed  ERROR: DW050:  - Adobe Illustrator CS6 Core: Failed due to Language Pack installation failure  ERROR: DW050:  - PDF Settings CS6: Install failed  ERROR: DW050:  - Recommended Common Fonts Installation x64: Install failed  ERROR: DW050:  - Adobe Extension Manager CS6: Install failed  ERROR: DW050:  - Adobe NPS Panel: Install failed  ERROR: DW050:  - Adobe Illustrator CS6 Core_AdobeIllustrator16en_USLanguagePack: Install failed  ERROR: DW050:  - Adobe WinSoft Linguistics Plugin CS6: Install failed  ERROR: DW050:  - Adobe Bridge CS6: Install failed  ERROR: DW050:  - Adobe Illustrator CS6 Core (64 Bit)_AdobeIllustrator16en_USLanguagePack_x64: Install failed  ERROR: DW050:  - Adobe Illustrator CS6 Core (64 Bit): Failed due to Language Pack installation failure  ERROR: DW050:  - AdobeIdeaPluginCS6: Install failed  ERROR: DW050:  - AdobeColorNA CS6: Install failed  ERROR: DW050:  - Adobe Linguistics CS6 x64: Install failed  ERROR: DW050:  - AdobeColorCommonSetRGB CS6: Install failed  ERROR: DW050:  - Adobe Illustrator CS6 Support32: Install failed  ERROR: DW050:  - AdobeHelp: Install failed  ERROR: DW050:  - Adobe Linguistics CS6: Install failed  ERROR: DW050:  - Recommended Common Fonts Installation: Install failed  ERROR: DW050:  - Adobe CSXS Extensions CS6: Install failed  ERROR: DW050:  - Adobe ExtendScript Toolkit CS6: Install failed  ERROR: DW050:  - Adobe Illustrator CS6 Support: Install failed  -------------------------------------------------------------------------------------