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Q: Can't access time machine backups after rebuild

My Mac mini has been exceedingly slow for some time even though I had 400GB free of 1TB capacity so after backing up to time machine, I reformatted the hard drive and reinstalled Elcapitan.  When I tried to access the backups after the reload they are red and will not allow me to access them.

 

I went into the permissions for the external drive and added Read/write permissions to the last 4 backups.  However after adding those permissions, I still can't access those backups to restore the data.  What can I do to correct this issue?

 

In addition, with only 55GB used, the Mini is extremely slow.  I'm getting the pinwheel for almost anything.  Any ideas?

 

Help!!!  Suggestions?

 

Mini details:

 

Model Name: Mac mini

  Model Identifier: Macmini6,2

  Processor Name: Intel Core i7

  Processor Speed: 2.3 GHz

  Number of Processors: 1

  Total Number of Cores: 4

  L2 Cache (per Core): 256 KB

  L3 Cache: 6 MB

  Memory: 16 GB

  Boot ROM Version: MM61.0106.B0A

  SMC Version (system): 2.8f1

  Serial Number (system): C07L1111DWYM

  Hardware UUID: 5FFB0249-3633-5387-9870-E283FFFC759D

Mac mini, OS X El Capitan (10.11.3)

Posted on Mar 21, 2016 7:06 AM

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